[Xenfocus] Uniform 2.3.6

Removed “Ungrouped properties” group
Fixed “Hide bar when scrolling down?” style property
When grid view is enabled, subforums also adopt the grid UI
Fixed icon for Trending Content widget
Navigation scroll arrows now have improved contrast
Styles now work when Style Variations are disabled

This update includes both the light and dark version in a single theme file, powered by Style Variations. The individual light and dark versions are no longer available.

support for xenforo 2.2.12

For xenforo 2.2.9