Added Blacklisting + Allow admin email

• Added blacklisting based on email list
• Added allow admin email when Magento emailcommunication is off

PHP 8 requirement added

PHP 8 requirement added to composer.json to avoid compatibility issues for users with PHP < 8

Magento >= 2.4.6; PHP 8.2

Rework (small) to drop backwards compatibility for older versions of Magento and PHP <= 8.1 (i.e. __construct() parameters etc.).

Tested on Magento 2.4.6-p3 and PHP 8.2

PHP 8.2 compatibility for Cron class

PHP Deprecated: Creation of dynamic property Experius\EmailCatcher\Cron\Clean::$connection is deprecated in Cron/Clean.php on line 49

3.5.2: Merge pull request #66 from experius/feature/SCSUP-1684

Update function imapUtf8 with check on string type

3.5.1: Merge pull request #65 from DjQuinnEXP/feature/BACI-694

[FEATURE][BACI-694] Added timezone based date in admin grid ui component.

3.5.0: Merge pull request #60 from rensieeee/master

Feature - Full 2.2.X compatibility

[REFACTOR] - Fix backwards compatibility with 2.2.X

Merge pull request #59 from rubenexp/master

[REFACTOR] - Fix backwards compatibility with 2.2.X

3.4.3 [BUGFIX] - Add required parameter before optional parameter in constructor

Merge pull request #58 from rubenexp/master

[BUGFIX] - Add required parameter before optional parameter in constructor

[BUGFIX] Fixed recipient string in resend message

Merge pull request #57 from rubenexp/master

Fix recipient variable in resend message