Bug and UI Fixes

-Fixed all z-index bugs
-Made loader color customizable
-Build process gets a failsafe
-Better table support (still one bug left)
-Toolbar gets customizable color and less fadein time
-Lab format improved
-Holoribbon gets better hover support
-All panels exit with Alt+Q
-Better LaTeX support in spreadsheets
-Better UX with formula bar
-Tables in the content now display the name
-Default theme now has a neutral gray instead of a blue
-Dictionary migrated to new loader
-Panel max/min fixes
-Theme fixes to support setLoaderColor()