[beta] More tweaks

Additions:

• Added rainbow bracket support!
  Aadd `"useBracketDepth":true` to your theme JSON, then use `#main .ace-tm .ace_curly.ace_paren.ace_depth1` and so on to match brackets

Fixes:

• Fixed it being possible to drag->close a tab, which would cause its document to get focus without having a tab attached to it anymore
• Fixed /**/ unfairly counting as an opening of a doc-comment
• Fixed #args doc generation not working (due to new @meta token), don't erase user-defined {types} that have no hint on the variable itself
• Fixed gms2 directory sorting option not showing up

Misc:

• Updated to Electron 7.1.9