[BZ] MenuFlex 2.0.3

Fixed a LESS bug that presented itself in Dark Mode

Fixed a couple small LESS bugs - including an issue when XenForo would not process color variables when imported from another LESS template
Major overhaul to CSS/LESS to further improve menu visuals and reduce some code redundancy when selecting multiple add-on options
Reorganized options page
After updating be sure to resave your setup options so your custom bzmf_final.less can be recompiled.