[XB] User Message Styles 2.0.2 Patch Level 1

XF 2.3 compatibility

2.0.2:

• Added ability to set avatar frame image with own CSS rules
• Added ability to combine multiple styles (combinations can be limited via style groups)
• Added checkbox to delete current postbit/avatar frame image
• Added permission to view styled messages

2.0.1:
New feature:

• Added button to create a new style by copying the data of the selected style

Fixes:

• Fix: reset user style on style deletion
• Fix: added missing category delete button