Solve PHP 8.1 issues:

* Implicit conversion from float to int loses precision
* JsonSerializable::jsonSerialize(): mixed

snappymail/v/0.0.0/app/libraries/MailSo/Base/Collection.php

@@ -74,6 +74,7 @@ abstract class Collection extends \ArrayObject implements \JsonSerializable
 		return $this;
 	}
 
+	#[\ReturnTypeWillChange]
 	public function jsonSerialize()
 	{
 		$aNames = \explode('\\', \get_class($this));

snappymail/v/0.0.0/app/libraries/MailSo/Imap/Responses/ACL.php

@@ -40,6 +40,7 @@ class ACL implements \JsonSerializable
 		return \in_array($right, $this->rights);
 	}
 
+	#[\ReturnTypeWillChange]
 	public function jsonSerialize()
 	{
 		return $this->rights;

snappymail/v/0.0.0/app/libraries/MailSo/Mail/Attachment.php

@@ -163,6 +163,7 @@ class Attachment implements \JsonSerializable
 		return $this;
 	}
 
+	#[\ReturnTypeWillChange]
 	public function jsonSerialize()
 	{
 		return array(

snappymail/v/0.0.0/app/libraries/MailSo/Mail/Folder.php

@@ -201,6 +201,7 @@ class Folder implements \JsonSerializable
 		return $this->oImapFolder->GetMetadata($sName);
 	}
 
+	#[\ReturnTypeWillChange]
 	public function jsonSerialize()
 	{
 /*

snappymail/v/0.0.0/app/libraries/MailSo/Mail/Message.php

@@ -625,6 +625,7 @@ class Message implements \JsonSerializable
 		return $oMessage;
 	}
 
+	#[\ReturnTypeWillChange]
 	public function jsonSerialize()
 	{
 		return array(

snappymail/v/0.0.0/app/libraries/MailSo/Mail/MessageCollection.php

@@ -88,6 +88,7 @@ class MessageCollection extends \MailSo\Base\Collection
 		throw new \BadMethodCallException('disallowed');
 	}
 
+	#[\ReturnTypeWillChange]
 	public function jsonSerialize()
 	{
 		return array_merge(parent::jsonSerialize(), array(

snappymail/v/0.0.0/app/libraries/MailSo/Mime/Email.php

@@ -254,6 +254,7 @@ class Email implements \JsonSerializable
 		return \trim($sReturn);
 	}
 
+	#[\ReturnTypeWillChange]
 	public function jsonSerialize()
 	{
 		return array(

snappymail/v/0.0.0/app/libraries/RainLoop/Config/AbstractConfig.php

@@ -55,6 +55,7 @@ abstract class AbstractConfig implements \JsonSerializable
 		return \is_array($this->aData) && \count($this->aData);
 	}
 
+	#[\ReturnTypeWillChange]
 	public function jsonSerialize()
 	{
 		return $this->aData;

snappymail/v/0.0.0/app/libraries/RainLoop/Model/Account.php

@@ -130,6 +130,7 @@ abstract class Account implements \JsonSerializable
 		$this->sProxyAuthPassword = $sProxyAuthPassword;
 	}
 
+	#[\ReturnTypeWillChange]
 	public function jsonSerialize()
 	{
 		return array(

snappymail/v/0.0.0/app/libraries/RainLoop/Model/Domain.php

@@ -400,6 +400,7 @@ class Domain implements \JsonSerializable
 		);
 	}
 
+	#[\ReturnTypeWillChange]
 	public function jsonSerialize()
 	{
 		return array(

snappymail/v/0.0.0/app/libraries/RainLoop/Model/Identity.php

@@ -161,6 +161,7 @@ class Identity implements \JsonSerializable
 		);
 	}
 
+	#[\ReturnTypeWillChange]
 	public function jsonSerialize()
 	{
 		return array(

snappymail/v/0.0.0/app/libraries/RainLoop/Plugins/Property.php

@@ -151,6 +151,7 @@ class Property implements \JsonSerializable
 		return $this->sPlaceholder;
 	}
 
+	#[\ReturnTypeWillChange]
 	public function jsonSerialize()
 	{
 		return array(

snappymail/v/0.0.0/app/libraries/RainLoop/Plugins/PropertyCollection.php

@@ -15,6 +15,7 @@ class PropertyCollection extends \ArrayObject implements \JsonSerializable
 		$this->sLabel = $sLabel;
 	}
 
+	#[\ReturnTypeWillChange]
 	public function jsonSerialize()
 	{
 		return array(

snappymail/v/0.0.0/app/libraries/RainLoop/Providers/AddressBook/Classes/Contact.php

@@ -588,6 +588,7 @@ class Contact implements \JsonSerializable
 		return true;
 	}
 
+	#[\ReturnTypeWillChange]
 	public function jsonSerialize()
 	{
 		$properties = array();

snappymail/v/0.0.0/app/libraries/RainLoop/Providers/AddressBook/Classes/Property.php

@@ -146,6 +146,7 @@ class Property implements \JsonSerializable
 		}
 	}
 
+	#[\ReturnTypeWillChange]
 	public function jsonSerialize()
 	{
 		// Simple hack

snappymail/v/0.0.0/app/libraries/RainLoop/Providers/AddressBook/Classes/Tag.php

@@ -31,6 +31,7 @@ class Tag implements \JsonSerializable
 		$this->ReadOnly = false;
 	}
 
+	#[\ReturnTypeWillChange]
 	public function jsonSerialize()
 	{
 		return array(

snappymail/v/0.0.0/app/libraries/RainLoop/Providers/Filters/Classes/Filter.php

@@ -204,6 +204,7 @@ class Filter implements \JsonSerializable
 		return !empty($this->aConditions);
 	}
 
+	#[\ReturnTypeWillChange]
 	public function jsonSerialize()
 	{
 		return array(

snappymail/v/0.0.0/app/libraries/RainLoop/Providers/Filters/Classes/FilterCondition.php

@@ -74,6 +74,7 @@ class FilterCondition implements \JsonSerializable
 		return $aResult;
 	}
 
+	#[\ReturnTypeWillChange]
 	public function jsonSerialize()
 	{
 		return array(

snappymail/v/0.0.0/app/libraries/snappymail/qrcode.php

@@ -654,10 +654,8 @@ abstract class QRUtil {
 				}
 			}
 		}
-		$ratio = \abs(100 * $darkCount / $moduleCount / $moduleCount - 50) / 5;
-		$lostPoint += $ratio * 10;
 
-		return $lostPoint;
+		return $lostPoint + \intval(\abs(100 * $darkCount / $moduleCount / $moduleCount - 50) * 10 / 5);
 	}
 
 	static function getBCHTypeInfo($data)