diff --git a/vendors/knockout/build/output/knockout-latest.debug.js b/vendors/knockout/build/output/knockout-latest.debug.js
index 75699eac1..d7bfefb67 100644
--- a/vendors/knockout/build/output/knockout-latest.debug.js
+++ b/vendors/knockout/build/output/knockout-latest.debug.js
@@ -59,17 +59,8 @@ ko.utils = (() => {
     var canSetPrototype = ({ __proto__: [] } instanceof Array);
 
     return {
-        arrayForEach: (array, action, actionOwner) =>
-            arrayCall('forEach', array, action, actionOwner),
-
-        arrayIndexOf: (array, item) =>
-            arrayCall('indexOf', array, item),
-
-        arrayFirst: (array, predicate, predicateOwner) =>
-            arrayCall('find', array, (e, i, a) => predicate.call(predicateOwner, e, i, a)),
-
         arrayRemoveItem: (array, itemToRemove) => {
-            var index = ko.utils.arrayIndexOf(array, itemToRemove);
+            var index = array.indexOf(itemToRemove);
             if (index > 0) {
                 array.splice(index, 1);
             }
@@ -78,15 +69,6 @@ ko.utils = (() => {
             }
         },
 
-        arrayPushAll: (array, valuesToPush) => {
-            if (valuesToPush instanceof Array)
-                array.push.apply(array, valuesToPush);
-            else
-                for (var i = 0, j = valuesToPush.length; i < j; i++)
-                    array.push(valuesToPush[i]);
-            return array;
-        },
-
         canSetPrototype: canSetPrototype,
 
         extend: extend,
@@ -332,7 +314,7 @@ ko.utils.domNodeDisposal = new (function () {
             if (!onlyComments || nodeList[i].nodeType === 8) {
                 cleanSingleNode(cleanedNodes[cleanedNodes.length] = lastCleanedNode = nodeList[i]);
                 if (nodeList[i] !== lastCleanedNode) {
-                    while (i-- && ko.utils.arrayIndexOf(cleanedNodes, nodeList[i]) == -1);
+                    while (i-- && !cleanedNodes.includes(nodeList[i]));
                 }
             }
         }
@@ -415,16 +397,7 @@ ko.exportSymbol('utils.domNodeDisposal.addDisposeCallback', ko.utils.domNodeDisp
             depth = wrap[0];
 
         // Go to html and back, then peel off extra wrappers
-        // Note that we always prefix with some dummy text, because otherwise, IE<9 will strip out leading comment nodes in descendants. Total madness.
-        var markup = "ignored<div>" + wrap[1] + html + wrap[2] + "</div>";
-        if (typeof windowContext['innerShiv'] == "function") {
-            // Note that innerShiv is deprecated in favour of html5shiv. We should consider adding
-            // support for html5shiv (except if no explicit support is needed, e.g., if html5shiv
-            // somehow shims the native APIs so it just works anyway)
-            div.append(windowContext['innerShiv'](markup));
-        } else {
-            div.innerHTML = markup;
-        }
+        div.innerHTML = "<div>" + wrap[1] + html + wrap[2] + "</div>";
 
         // Move to the right depth
         while (depth--)
@@ -996,13 +969,11 @@ ko.observableArray['fn'] = {
         // If you passed an arg, we interpret it as an array of entries to remove
         if (!arrayOfValues)
             return [];
-        return this['remove'](function (value) {
-            return ko.utils.arrayIndexOf(arrayOfValues, value) >= 0;
-        });
+        return this['remove'](value => arrayOfValues.includes(value));
     },
 
     'indexOf': function (item) {
-        return ko.utils.arrayIndexOf(this(), item);
+        return this().indexOf(item);
     }
 };
 
@@ -1363,10 +1334,10 @@ var computedFn = {
             return false;
         }
         var dependencies = this.getDependencies();
-        if (ko.utils.arrayIndexOf(dependencies, obs) !== -1) {
+        if (dependencies.includes(obs)) {
             return true;
         }
-        return !!ko.utils.arrayFirst(dependencies, dep =>
+        return !!dependencies.find(dep =>
             dep.hasAncestorDependency && dep.hasAncestorDependency(obs)
         );
     },
@@ -1628,7 +1599,7 @@ var pureComputedOverrides = {
                     dependenciesOrder[dependency._order] = id
                 );
                 // Next, subscribe to each one
-                ko.utils.arrayForEach(dependenciesOrder, (id, order) => {
+                dependenciesOrder.forEach((id, order) => {
                     var dependency = state.dependencyTracking[id],
                         subscription = computedObservable.subscribeToDependency(dependency._target);
                     subscription._order = order;
@@ -1779,7 +1750,7 @@ ko.expressionRewriting = (() => {
     var javaScriptAssignmentTarget = /^(?:[$_a-z][$\w]*|(.+)(\.\s*[$_a-z][$\w]*|\[.+\]))$/i;
 
     function getWriteableValue(expression) {
-        if (ko.utils.arrayIndexOf(javaScriptReservedWords, expression) >= 0)
+        if (javaScriptReservedWords.includes(expression))
             return false;
         var match = expression.match(javaScriptAssignmentTarget);
         return match === null ? false : match[1] ? ('Object(' + match[1] + ')' + match[2]) : expression;
@@ -1915,7 +1886,7 @@ ko.expressionRewriting = (() => {
             keyValueArray = typeof bindingsStringOrKeyValueArray === "string" ?
                 parseObjectLiteral(bindingsStringOrKeyValueArray) : bindingsStringOrKeyValueArray;
 
-        ko.utils.arrayForEach(keyValueArray, keyValue =>
+        keyValueArray.forEach(keyValue =>
             processKeyValue(keyValue.key || keyValue['unknown'], keyValue.value)
         );
 
@@ -2520,13 +2491,12 @@ ko.expressionRewriting = (() => {
                     // First add dependencies (if any) of the current binding
                     if (binding['after']) {
                         cyclicDependencyStack.push(bindingKey);
-                        ko.utils.arrayForEach(binding['after'], bindingDependencyKey => {
+                        binding['after'].forEach(bindingDependencyKey => {
                             if (bindings[bindingDependencyKey]) {
-                                if (ko.utils.arrayIndexOf(cyclicDependencyStack, bindingDependencyKey) !== -1) {
+                                if (cyclicDependencyStack.includes(bindingDependencyKey)) {
                                     throw Error("Cannot combine the following bindings, because they have a cyclic dependency: " + cyclicDependencyStack.join(", "));
-                                } else {
-                                    pushBinding(bindingDependencyKey);
                                 }
+                                pushBinding(bindingDependencyKey);
                             }
                         });
                         cyclicDependencyStack.length--;
@@ -2631,10 +2601,8 @@ ko.expressionRewriting = (() => {
             }
 
             // First put the bindings into the right order
-            var orderedBindings = topologicalSortBindings(bindings);
-
             // Go through the sorted bindings, calling init and update for each
-            ko.utils.arrayForEach(orderedBindings, bindingKeyAndHandler => {
+            topologicalSortBindings(bindings).forEach(bindingKeyAndHandler => {
                 // Note that topologicalSortBindings has already filtered out any nonexistent binding handlers,
                 // so bindingKeyAndHandler.handler will always be nonnull.
                 var handlerInitFn = bindingKeyAndHandler.handler["init"],
@@ -3610,7 +3578,7 @@ ko.bindingHandlers['options'] = {
             } else if (previousSelectedValues.length) {
                 // IE6 doesn't like us to assign selection to OPTION nodes before they're added to the document.
                 // That's why we first added them without selection. Now it's time to set the selection.
-                var isSelected = ko.utils.arrayIndexOf(previousSelectedValues, ko.selectExtensions.readValue(newOptions[0])) >= 0;
+                var isSelected = previousSelectedValues.includes(ko.selectExtensions.readValue(newOptions[0]));
                 newOptions[0].selected = isSelected;
 
                 // If this option was changed from being selected during a single-item update, notify the change
@@ -3775,7 +3743,7 @@ ko.bindingHandlers['textInput'] = {
 
         if (DEBUG && ko.bindingHandlers['textInput']['_forceUpdateOn']) {
             // Provide a way for tests to specify exactly which events are bound
-            ko.utils.arrayForEach(ko.bindingHandlers['textInput']['_forceUpdateOn'], eventName => {
+            ko.bindingHandlers['textInput']['_forceUpdateOn'].forEach(eventName => {
                 if (eventName.slice(0,5) == 'after') {
                     onEvent(eventName.slice(5), deferUpdateModel);
                 } else {
@@ -3836,7 +3804,7 @@ ko.bindingHandlers['value'] = {
             ko.expressionRewriting.writeValueToProperty(modelValue, allBindings, 'value', elementValue);
         }
 
-        ko.utils.arrayForEach(eventsToCatch, eventName => {
+        eventsToCatch.forEach(eventName => {
             // The syntax "after<eventname>" means "run the handler asynchronously after the event"
             // This is useful, for example, to catch "keydown" events after the browser has updated the control
             // (otherwise, ko.selectExtensions.readValue(this) will receive the control's value *before* the key event)
@@ -3965,9 +3933,7 @@ makeEventHandlerShortcut('click');
     // ---- ko.templateSources.domElement -----
 
     // template types
-    var templateScript = 1,
-        templateTextArea = 2,
-        templateTemplate = 3,
+    var templateTemplate = 3,
         templateElement = 4;
 
     ko.templateSources.domElement = function(element) {
@@ -3976,27 +3942,17 @@ makeEventHandlerShortcut('click');
         if (element) {
             var tagNameLower = ko.utils.tagNameLower(element);
             this.templateType =
-                tagNameLower === "script" ? templateScript :
-                tagNameLower === "textarea" ? templateTextArea :
-                    // For browsers with proper <template> element support, where the .content property gives a document fragment
                 tagNameLower == "template" && element.content && element.content.nodeType === 11 ? templateTemplate :
                 templateElement;
         }
     }
 
     ko.templateSources.domElement.prototype['text'] = function(/* valueToWrite */) {
-        var elemContentsProperty = this.templateType === templateScript ? "text"
-                                 : this.templateType === templateTextArea ? "value"
-                                 : "innerHTML";
-
+        var elemContentsProperty = "innerHTML";
         if (arguments.length == 0) {
-            return this.domElement[elemContentsProperty];
+            return this.domElement.innerHTML;
         }
-        var valueToWrite = arguments[0];
-        if (elemContentsProperty === "innerHTML")
-            ko.utils.setHtml(this.domElement, valueToWrite);
-        else
-            this.domElement[elemContentsProperty] = valueToWrite;
+        ko.utils.setHtml(this.domElement, arguments[0]);
     };
 
     var dataDomDataPrefix = ko.utils.domData.nextKey() + "_";
@@ -4544,8 +4500,8 @@ ko.utils.compareArrays = (() => {
             // Replace the contents of the mappedNodes array, thereby updating the record
             // of which nodes would be deleted if valueToMap was itself later removed
             mappedNodes.length = 0;
-            ko.utils.arrayPushAll(mappedNodes, newMappedNodes);
-        }, null, { disposeWhenNodeIsRemoved: containerNode, disposeWhen: ()=>!!ko.utils.arrayFirst(mappedNodes, ko.utils.domNodeIsAttachedToDocument) });
+            mappedNodes.push(...newMappedNodes);
+        }, null, { disposeWhenNodeIsRemoved: containerNode, disposeWhen: ()=>!!mappedNodes.find(ko.utils.domNodeIsAttachedToDocument) });
         return { mappedNodes : mappedNodes, dependentObservable : (dependentObservable.isActive() ? dependentObservable : undefined) };
     }
 
@@ -4595,15 +4551,13 @@ ko.utils.compareArrays = (() => {
         function callCallback(callback, items) {
             if (callback) {
                 for (var i = 0, n = items.length; i < n; i++) {
-                    ko.utils.arrayForEach(items[i].mappedNodes, function(node) {
-                        callback(node, i, items[i].arrayEntry);
-                    });
+                    items[i].mappedNodes.forEach(node => callback(node, i, items[i].arrayEntry));
                 }
             }
         }
 
         if (isFirstExecution) {
-            ko.utils.arrayForEach(array, itemAdded);
+            array.forEach(itemAdded);
         } else {
             if (!editScript || (lastMappingResult && lastMappingResult['_countWaitingForRemove'])) {
                 // Compare the provided array against the previous one
@@ -4681,7 +4635,7 @@ ko.utils.compareArrays = (() => {
         callCallback(options['beforeMove'], itemsForMoveCallbacks);
 
         // Next remove nodes for deleted items (or just clean if there's a beforeRemove callback)
-        ko.utils.arrayForEach(nodesToDelete, options['beforeRemove'] ? ko.cleanNode : ko.removeNode);
+        nodesToDelete.forEach(options['beforeRemove'] ? ko.cleanNode : ko.removeNode);
 
         var i, j, lastNode, nodeToInsert, mappedNodes, activeElement;
 
diff --git a/vendors/knockout/build/output/knockout-latest.js b/vendors/knockout/build/output/knockout-latest.js
index 092fc3e1e..c07c75a3f 100644
--- a/vendors/knockout/build/output/knockout-latest.js
+++ b/vendors/knockout/build/output/knockout-latest.js
@@ -4,89 +4,88 @@
  * License: MIT (http://www.opensource.org/licenses/mit-license.php)
  */
 
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+{var m;for(f=a.h.nextSibling(f);c&&(m=c)!==f;)c=a.h.nextSibling(m),k(m,c)};a.Sc=function(c,f,k,m){k=k||{};var q=q||"replaceChildren";if(m){var p=m.nodeType?m:0<m.length?m[0]:null;return a.i(()=>{var u=f&&f instanceof a.U?f:new a.U(f,null,null,null,{exportDependencies:!0}),x=e(c,u.$data,u);d(m,q,x,u,k)},null,{ua:()=>!p||!a.a.hb(p),j:p})}console.log("no targetNodeOrNodeArray")};a.Tc=(c,f,k,m,q)=>{function p(t,y){a.o.I(a.a.lc,null,[m,t,v,k,w,y]);a.f.notify(m,a.f.B)}var u,x=k.as,v=(t,y)=>{u=q.createChildContext(t,
+{as:x,noChildContext:k.noChildContext,extend:F=>{F.$index=y;x&&(F[x+"Index"]=y)}});t=e(c,t,u);return d(m,"ignoreTargetNode",t,u,k)},w=(t,y)=>{b(y,u);k.afterRender&&k.afterRender(y,t);u=null},n=!1===k.includeDestroyed;if(n||k.beforeRemove||!a.dc(f))return a.i(()=>{var t=a.a.g(f)||[];"undefined"==typeof t.length&&(t=[t]);n&&(t=t.filter(y=>y||null==y));p(t)},null,{j:m});p(f.D());var r=f.subscribe(t=>{p(f(),t)},null,"arrayChange");r.j(m);return r};var h=a.a.b.W(),l=a.a.b.W();a.c.template={init:(c,f)=>
+{f=a.a.g(f());if("string"==typeof f||"name"in f)a.h.va(c);else if("nodes"in f){f=f.nodes||[];if(a.O(f))throw Error('The "nodes" option must be a plain, non-observable array.');let k=f[0]&&f[0].parentNode;k&&a.a.b.get(k,l)||(k=a.a.qb(f),a.a.b.set(k,l,!0));(new a.F.ba(c)).nodes(k)}else if(f=a.h.childNodes(c),0<f.length)f=a.a.qb(f),(new a.F.ba(c)).nodes(f);else throw Error("Anonymous template defined, but no template content was provided");return{controlsDescendantBindings:!0}},update:(c,f,k,m,q)=>{var p=
+f();f=a.a.g(p);k=!0;m=null;"string"==typeof f?f={}:(p="name"in f?f.name:c,"if"in f&&(k=a.a.g(f["if"])),k&&"ifnot"in f&&(k=!a.a.g(f.ifnot)),k&&!p&&(k=!1));"foreach"in f?m=a.Tc(p,k&&f.foreach||[],f,c,q):k?(k=q,"data"in f&&(k=q.createChildContext(f.data,{as:f.as,noChildContext:f.noChildContext,exportDependencies:!0})),m=a.Sc(p,k,f,c)):a.h.va(c);q=m;(f=a.a.b.get(c,h))&&"function"==typeof f.s&&f.s();a.a.b.set(c,h,!q||q.da&&!q.da()?void 0:q)}};a.H.bb.template=c=>{c=a.H.Oc(c);return 1==c.length&&c[0].unknown||
+a.H.Lc(c,"name")?null:"This template engine does not support anonymous templates nested within its templates"};a.h.ha.template=!0})();a.a.$b=(b,d,e)=>{if(b.length&&d.length){var g,h,l,c,f;for(g=h=0;(!e||g<e)&&(c=b[h]);++h){for(l=0;f=d[l];++l)if(c.value===f.value){c.moved=f.index;f.moved=c.index;d.splice(l,1);g=l=0;break}g+=l}}};a.a.Ub=(()=>{function b(d,e,g,h,l){var c=Math.min,f=Math.max,k=[],m,q=d.length,p,u=e.length,x=u-q||1,v=q+u+1,w;for(m=0;m<=q;m++){var n=w;k.push(w=[]);var r=c(u,m+x);for(p=
+f(0,m-1);p<=r;p++)w[p]=p?m?d[m-1]===e[p-1]?n[p-1]:c(n[p]||v,w[p-1]||v)+1:p+1:m+1}c=[];f=[];x=[];m=q;for(p=u;m||p;)u=k[m][p]-1,p&&u===k[m][p-1]?f.push(c[c.length]={status:g,value:e[--p],index:p}):m&&u===k[m-1][p]?x.push(c[c.length]={status:h,value:d[--m],index:m}):(--p,--m,l.sparse||c.push({status:"retained",value:e[p]}));a.a.$b(x,f,!l.dontLimitMoves&&10*q);return c.reverse()}return function(d,e,g){g="boolean"===typeof g?{dontLimitMoves:g}:g||{};d=d||[];e=e||[];return d.length<e.length?b(d,e,"added",
+"deleted",g):b(e,d,"deleted","added",g)}})();(()=>{function b(g,h,l,c,f){var k=[],m=a.i(()=>{var q=h(l,f,a.a.wa(k,g))||[];if(0<k.length){var p=k.nodeType?[k]:k;if(0<p.length){var u=p[0],x=u.parentNode,v;var w=0;for(v=q.length;w<v;w++)x.insertBefore(q[w],u);w=0;for(v=p.length;w<v;w++)a.removeNode(p[w])}c&&a.o.I(c,null,[l,q,f])}k.length=0;k.push(...q)},null,{j:g,ua:()=>!!k.find(a.a.hb)});return{R:k,eb:m.da()?m:void 0}}var d=a.a.b.W(),e=a.a.b.W();a.a.lc=(g,h,l,c,f,k)=>{function m(K){A={ia:K,Oa:a.ga(n++)};
+v.push(A);x||z.push(A)}function q(K){A=u[K];n!==A.Oa.D()&&F.push(A);A.Oa(n++);a.a.wa(A.R,g);v.push(A)}function p(K,L){if(K)for(var M=0,C=L.length;M<C;M++)L[M].R.forEach(S=>K(S,M,L[M].ia))}h=h||[];"undefined"==typeof h.length&&(h=[h]);c=c||{};var u=a.a.b.get(g,d),x=!u,v=[],w=0,n=0,r=[],t=[],y=[],F=[],z=[],B=0;if(x)h.forEach(m);else{if(!k||u&&u._countWaitingForRemove)k=Array.prototype.map.call(u,K=>K.ia),k=a.a.Ub(k,h,{dontLimitMoves:c.dontLimitMoves,sparse:!0});for(let K=0,L,M,C;L=k[K];K++)switch(M=
+L.moved,C=L.index,L.status){case "deleted":for(;w<C;)q(w++);if(void 0===M){var A=u[w];A.eb&&(A.eb.s(),A.eb=void 0);a.a.wa(A.R,g).length&&(c.beforeRemove&&(v.push(A),B++,A.ia===e?A=null:y.push(A)),A&&r.push.apply(r,A.R))}w++;break;case "added":for(;n<C;)q(w++);void 0!==M?(t.push(v.length),q(M)):m(L.value)}for(;n<h.length;)q(w++);v._countWaitingForRemove=B}a.a.b.set(g,d,v);p(c.beforeMove,F);r.forEach(c.beforeRemove?a.ka:a.removeNode);var H,N;B=g.ownerDocument.activeElement;if(t.length)for(;void 0!=
+(h=t.shift());){A=v[h];for(H=void 0;h;)if((N=v[--h].R)&&N.length){H=N[N.length-1];break}for(w=0;r=A.R[w];H=r,w++)a.h.cc(g,r,H)}for(h=0;A=v[h];h++){A.R||a.a.extend(A,b(g,l,A.ia,f,A.Oa));for(w=0;r=A.R[w];H=r,w++)a.h.cc(g,r,H);!A.Ic&&f&&(f(A.ia,A.R,A.Oa),A.Ic=!0,H=A.R[A.R.length-1])}B&&g.ownerDocument.activeElement!=B&&B.focus();p(c.beforeRemove,y);for(h=0;h<y.length;++h)y[h].ia=e;p(c.afterMove,F);p(c.afterAdd,z)}})();D.ko=Z})(this);
diff --git a/vendors/knockout/src/binding/bindingAttributeSyntax.js b/vendors/knockout/src/binding/bindingAttributeSyntax.js
index 9620b4ae1..9fc88780f 100644
--- a/vendors/knockout/src/binding/bindingAttributeSyntax.js
+++ b/vendors/knockout/src/binding/bindingAttributeSyntax.js
@@ -343,13 +343,12 @@
                     // First add dependencies (if any) of the current binding
                     if (binding['after']) {
                         cyclicDependencyStack.push(bindingKey);
-                        ko.utils.arrayForEach(binding['after'], bindingDependencyKey => {
+                        binding['after'].forEach(bindingDependencyKey => {
                             if (bindings[bindingDependencyKey]) {
-                                if (ko.utils.arrayIndexOf(cyclicDependencyStack, bindingDependencyKey) !== -1) {
+                                if (cyclicDependencyStack.includes(bindingDependencyKey)) {
                                     throw Error("Cannot combine the following bindings, because they have a cyclic dependency: " + cyclicDependencyStack.join(", "));
-                                } else {
-                                    pushBinding(bindingDependencyKey);
                                 }
+                                pushBinding(bindingDependencyKey);
                             }
                         });
                         cyclicDependencyStack.length--;
@@ -454,10 +453,8 @@
             }
 
             // First put the bindings into the right order
-            var orderedBindings = topologicalSortBindings(bindings);
-
             // Go through the sorted bindings, calling init and update for each
-            ko.utils.arrayForEach(orderedBindings, bindingKeyAndHandler => {
+            topologicalSortBindings(bindings).forEach(bindingKeyAndHandler => {
                 // Note that topologicalSortBindings has already filtered out any nonexistent binding handlers,
                 // so bindingKeyAndHandler.handler will always be nonnull.
                 var handlerInitFn = bindingKeyAndHandler.handler["init"],
diff --git a/vendors/knockout/src/binding/defaultBindings/options.js b/vendors/knockout/src/binding/defaultBindings/options.js
index ebf1242b7..21b9682dd 100644
--- a/vendors/knockout/src/binding/defaultBindings/options.js
+++ b/vendors/knockout/src/binding/defaultBindings/options.js
@@ -101,7 +101,7 @@ ko.bindingHandlers['options'] = {
             } else if (previousSelectedValues.length) {
                 // IE6 doesn't like us to assign selection to OPTION nodes before they're added to the document.
                 // That's why we first added them without selection. Now it's time to set the selection.
-                var isSelected = ko.utils.arrayIndexOf(previousSelectedValues, ko.selectExtensions.readValue(newOptions[0])) >= 0;
+                var isSelected = previousSelectedValues.includes(ko.selectExtensions.readValue(newOptions[0]));
                 newOptions[0].selected = isSelected;
 
                 // If this option was changed from being selected during a single-item update, notify the change
diff --git a/vendors/knockout/src/binding/defaultBindings/textInput.js b/vendors/knockout/src/binding/defaultBindings/textInput.js
index e71cd5d62..24bba09d5 100644
--- a/vendors/knockout/src/binding/defaultBindings/textInput.js
+++ b/vendors/knockout/src/binding/defaultBindings/textInput.js
@@ -55,7 +55,7 @@ ko.bindingHandlers['textInput'] = {
 
         if (DEBUG && ko.bindingHandlers['textInput']['_forceUpdateOn']) {
             // Provide a way for tests to specify exactly which events are bound
-            ko.utils.arrayForEach(ko.bindingHandlers['textInput']['_forceUpdateOn'], eventName => {
+            ko.bindingHandlers['textInput']['_forceUpdateOn'].forEach(eventName => {
                 if (eventName.slice(0,5) == 'after') {
                     onEvent(eventName.slice(5), deferUpdateModel);
                 } else {
diff --git a/vendors/knockout/src/binding/defaultBindings/value.js b/vendors/knockout/src/binding/defaultBindings/value.js
index ac075ee93..a58e08bfc 100644
--- a/vendors/knockout/src/binding/defaultBindings/value.js
+++ b/vendors/knockout/src/binding/defaultBindings/value.js
@@ -32,7 +32,7 @@ ko.bindingHandlers['value'] = {
             ko.expressionRewriting.writeValueToProperty(modelValue, allBindings, 'value', elementValue);
         }
 
-        ko.utils.arrayForEach(eventsToCatch, eventName => {
+        eventsToCatch.forEach(eventName => {
             // The syntax "after<eventname>" means "run the handler asynchronously after the event"
             // This is useful, for example, to catch "keydown" events after the browser has updated the control
             // (otherwise, ko.selectExtensions.readValue(this) will receive the control's value *before* the key event)
diff --git a/vendors/knockout/src/binding/editDetection/arrayToDomNodeChildren.js b/vendors/knockout/src/binding/editDetection/arrayToDomNodeChildren.js
index 999e780f4..890164f63 100644
--- a/vendors/knockout/src/binding/editDetection/arrayToDomNodeChildren.js
+++ b/vendors/knockout/src/binding/editDetection/arrayToDomNodeChildren.js
@@ -35,8 +35,8 @@
             // Replace the contents of the mappedNodes array, thereby updating the record
             // of which nodes would be deleted if valueToMap was itself later removed
             mappedNodes.length = 0;
-            ko.utils.arrayPushAll(mappedNodes, newMappedNodes);
-        }, null, { disposeWhenNodeIsRemoved: containerNode, disposeWhen: ()=>!!ko.utils.arrayFirst(mappedNodes, ko.utils.domNodeIsAttachedToDocument) });
+            mappedNodes.push(...newMappedNodes);
+        }, null, { disposeWhenNodeIsRemoved: containerNode, disposeWhen: ()=>!!mappedNodes.find(ko.utils.domNodeIsAttachedToDocument) });
         return { mappedNodes : mappedNodes, dependentObservable : (dependentObservable.isActive() ? dependentObservable : undefined) };
     }
 
@@ -86,15 +86,13 @@
         function callCallback(callback, items) {
             if (callback) {
                 for (var i = 0, n = items.length; i < n; i++) {
-                    ko.utils.arrayForEach(items[i].mappedNodes, function(node) {
-                        callback(node, i, items[i].arrayEntry);
-                    });
+                    items[i].mappedNodes.forEach(node => callback(node, i, items[i].arrayEntry));
                 }
             }
         }
 
         if (isFirstExecution) {
-            ko.utils.arrayForEach(array, itemAdded);
+            array.forEach(itemAdded);
         } else {
             if (!editScript || (lastMappingResult && lastMappingResult['_countWaitingForRemove'])) {
                 // Compare the provided array against the previous one
@@ -172,7 +170,7 @@
         callCallback(options['beforeMove'], itemsForMoveCallbacks);
 
         // Next remove nodes for deleted items (or just clean if there's a beforeRemove callback)
-        ko.utils.arrayForEach(nodesToDelete, options['beforeRemove'] ? ko.cleanNode : ko.removeNode);
+        nodesToDelete.forEach(options['beforeRemove'] ? ko.cleanNode : ko.removeNode);
 
         var i, j, lastNode, nodeToInsert, mappedNodes, activeElement;
 
diff --git a/vendors/knockout/src/binding/expressionRewriting.js b/vendors/knockout/src/binding/expressionRewriting.js
index 3348bd577..f20db80f1 100644
--- a/vendors/knockout/src/binding/expressionRewriting.js
+++ b/vendors/knockout/src/binding/expressionRewriting.js
@@ -7,7 +7,7 @@ ko.expressionRewriting = (() => {
     var javaScriptAssignmentTarget = /^(?:[$_a-z][$\w]*|(.+)(\.\s*[$_a-z][$\w]*|\[.+\]))$/i;
 
     function getWriteableValue(expression) {
-        if (ko.utils.arrayIndexOf(javaScriptReservedWords, expression) >= 0)
+        if (javaScriptReservedWords.includes(expression))
             return false;
         var match = expression.match(javaScriptAssignmentTarget);
         return match === null ? false : match[1] ? ('Object(' + match[1] + ')' + match[2]) : expression;
@@ -143,7 +143,7 @@ ko.expressionRewriting = (() => {
             keyValueArray = typeof bindingsStringOrKeyValueArray === "string" ?
                 parseObjectLiteral(bindingsStringOrKeyValueArray) : bindingsStringOrKeyValueArray;
 
-        ko.utils.arrayForEach(keyValueArray, keyValue =>
+        keyValueArray.forEach(keyValue =>
             processKeyValue(keyValue.key || keyValue['unknown'], keyValue.value)
         );
 
diff --git a/vendors/knockout/src/subscribables/dependentObservable.js b/vendors/knockout/src/subscribables/dependentObservable.js
index b23355e4f..5107a114a 100644
--- a/vendors/knockout/src/subscribables/dependentObservable.js
+++ b/vendors/knockout/src/subscribables/dependentObservable.js
@@ -160,10 +160,10 @@ var computedFn = {
             return false;
         }
         var dependencies = this.getDependencies();
-        if (ko.utils.arrayIndexOf(dependencies, obs) !== -1) {
+        if (dependencies.includes(obs)) {
             return true;
         }
-        return !!ko.utils.arrayFirst(dependencies, dep =>
+        return !!dependencies.find(dep =>
             dep.hasAncestorDependency && dep.hasAncestorDependency(obs)
         );
     },
@@ -425,7 +425,7 @@ var pureComputedOverrides = {
                     dependenciesOrder[dependency._order] = id
                 );
                 // Next, subscribe to each one
-                ko.utils.arrayForEach(dependenciesOrder, (id, order) => {
+                dependenciesOrder.forEach((id, order) => {
                     var dependency = state.dependencyTracking[id],
                         subscription = computedObservable.subscribeToDependency(dependency._target);
                     subscription._order = order;
diff --git a/vendors/knockout/src/subscribables/observableArray.js b/vendors/knockout/src/subscribables/observableArray.js
index c8d254b8c..42e9be4b1 100644
--- a/vendors/knockout/src/subscribables/observableArray.js
+++ b/vendors/knockout/src/subscribables/observableArray.js
@@ -47,13 +47,11 @@ ko.observableArray['fn'] = {
         // If you passed an arg, we interpret it as an array of entries to remove
         if (!arrayOfValues)
             return [];
-        return this['remove'](function (value) {
-            return ko.utils.arrayIndexOf(arrayOfValues, value) >= 0;
-        });
+        return this['remove'](value => arrayOfValues.includes(value));
     },
 
     'indexOf': function (item) {
-        return ko.utils.arrayIndexOf(this(), item);
+        return this().indexOf(item);
     }
 };
 
diff --git a/vendors/knockout/src/templating/templateSources.js b/vendors/knockout/src/templating/templateSources.js
index 5746c3020..01d1fbbe0 100644
--- a/vendors/knockout/src/templating/templateSources.js
+++ b/vendors/knockout/src/templating/templateSources.js
@@ -28,9 +28,7 @@
     // ---- ko.templateSources.domElement -----
 
     // template types
-    var templateScript = 1,
-        templateTextArea = 2,
-        templateTemplate = 3,
+    var templateTemplate = 3,
         templateElement = 4;
 
     ko.templateSources.domElement = function(element) {
@@ -39,27 +37,17 @@
         if (element) {
             var tagNameLower = ko.utils.tagNameLower(element);
             this.templateType =
-                tagNameLower === "script" ? templateScript :
-                tagNameLower === "textarea" ? templateTextArea :
-                    // For browsers with proper <template> element support, where the .content property gives a document fragment
                 tagNameLower == "template" && element.content && element.content.nodeType === 11 ? templateTemplate :
                 templateElement;
         }
     }
 
     ko.templateSources.domElement.prototype['text'] = function(/* valueToWrite */) {
-        var elemContentsProperty = this.templateType === templateScript ? "text"
-                                 : this.templateType === templateTextArea ? "value"
-                                 : "innerHTML";
-
+        var elemContentsProperty = "innerHTML";
         if (arguments.length == 0) {
-            return this.domElement[elemContentsProperty];
+            return this.domElement.innerHTML;
         }
-        var valueToWrite = arguments[0];
-        if (elemContentsProperty === "innerHTML")
-            ko.utils.setHtml(this.domElement, valueToWrite);
-        else
-            this.domElement[elemContentsProperty] = valueToWrite;
+        ko.utils.setHtml(this.domElement, arguments[0]);
     };
 
     var dataDomDataPrefix = ko.utils.domData.nextKey() + "_";
diff --git a/vendors/knockout/src/utils.domManipulation.js b/vendors/knockout/src/utils.domManipulation.js
index f203c0e81..fc74fad51 100644
--- a/vendors/knockout/src/utils.domManipulation.js
+++ b/vendors/knockout/src/utils.domManipulation.js
@@ -32,16 +32,7 @@
             depth = wrap[0];
 
         // Go to html and back, then peel off extra wrappers
-        // Note that we always prefix with some dummy text, because otherwise, IE<9 will strip out leading comment nodes in descendants. Total madness.
-        var markup = "ignored<div>" + wrap[1] + html + wrap[2] + "</div>";
-        if (typeof windowContext['innerShiv'] == "function") {
-            // Note that innerShiv is deprecated in favour of html5shiv. We should consider adding
-            // support for html5shiv (except if no explicit support is needed, e.g., if html5shiv
-            // somehow shims the native APIs so it just works anyway)
-            div.append(windowContext['innerShiv'](markup));
-        } else {
-            div.innerHTML = markup;
-        }
+        div.innerHTML = "<div>" + wrap[1] + html + wrap[2] + "</div>";
 
         // Move to the right depth
         while (depth--)
diff --git a/vendors/knockout/src/utils.domNodeDisposal.js b/vendors/knockout/src/utils.domNodeDisposal.js
index ae944c5db..5a26caf7c 100644
--- a/vendors/knockout/src/utils.domNodeDisposal.js
+++ b/vendors/knockout/src/utils.domNodeDisposal.js
@@ -41,7 +41,7 @@ ko.utils.domNodeDisposal = new (function () {
             if (!onlyComments || nodeList[i].nodeType === 8) {
                 cleanSingleNode(cleanedNodes[cleanedNodes.length] = lastCleanedNode = nodeList[i]);
                 if (nodeList[i] !== lastCleanedNode) {
-                    while (i-- && ko.utils.arrayIndexOf(cleanedNodes, nodeList[i]) == -1);
+                    while (i-- && !cleanedNodes.includes(nodeList[i]));
                 }
             }
         }
diff --git a/vendors/knockout/src/utils.js b/vendors/knockout/src/utils.js
index 567264c6f..94da27d24 100644
--- a/vendors/knockout/src/utils.js
+++ b/vendors/knockout/src/utils.js
@@ -25,17 +25,8 @@ ko.utils = (() => {
     var canSetPrototype = ({ __proto__: [] } instanceof Array);
 
     return {
-        arrayForEach: (array, action, actionOwner) =>
-            arrayCall('forEach', array, action, actionOwner),
-
-        arrayIndexOf: (array, item) =>
-            arrayCall('indexOf', array, item),
-
-        arrayFirst: (array, predicate, predicateOwner) =>
-            arrayCall('find', array, (e, i, a) => predicate.call(predicateOwner, e, i, a)),
-
         arrayRemoveItem: (array, itemToRemove) => {
-            var index = ko.utils.arrayIndexOf(array, itemToRemove);
+            var index = array.indexOf(itemToRemove);
             if (index > 0) {
                 array.splice(index, 1);
             }
@@ -44,15 +35,6 @@ ko.utils = (() => {
             }
         },
 
-        arrayPushAll: (array, valuesToPush) => {
-            if (valuesToPush instanceof Array)
-                array.push.apply(array, valuesToPush);
-            else
-                for (var i = 0, j = valuesToPush.length; i < j; i++)
-                    array.push(valuesToPush[i]);
-            return array;
-        },
-
         canSetPrototype: canSetPrototype,
 
         extend: extend,