[DD] Prefix & Label Tools - add Icons and more 1.3.6

Release 1.3.6 (ID 1030670)

• Bugfix: Fixed an issue where dynamically created label layout style properties and their phrases were deleted during add-on upgrades or dev imports. These properties and phrases now strictly retain an empty addon_id, preventing XenForo from dropping them. An automated migration cleanly migrates existing installations.

Release 1.3.5 (ID 1030570)

• XFCP Class Extension Compatibility: Fixed method signature declarations on overridden XenForo core methods (ForumController::saveTypeData(), UserGroupController, StyleController, StylePropertyController, UserGroup, ThreadPrefix, ResourcePrefix, and UserGroupRepository) by removing narrowed return types, preventing PHP fatal declaration incompatibility errors when other add-ons extend the same classes.

Version 1.3.4 (Patch Release)
Fixed:

• Fixed LogicException when sorting label layouts by guarding StyleProperty::_postSave() with isChanged('property_value') and forceSet.
• Full PHP 8.2+ baseline and PHP 8.4-ready code review: strict method return types, typed class properties, and unused imports cleaned up across all PHP files.
• Fixed cache key mismatch in XFRM\Entity\ResourcePrefix to use ResourceItemIcons.
• Fixed fatal undefined method call getUserGroupRepo() in XF\Entity\UserGroup.
• Fixed class name casing for StyleRepository::class in AdminPrefix option handler.
• Repaired broken LabelLayoutRepository::fixLayoutData() method.
• Added complete set of documentation screenshots in _docs/screenshots/.

Fixed several minor bugs
optimizes Setup and Code Maintenance
Prefix Icons are now visible also in Drop Downs in Create Thread and in Inline Moderation