Better Widget Position Editor

[PepperLola]

Improve the screen for editing the positions of widgets. Add a popup/tooltip for changing widget settings, such as going into that module's settings or toggling chroma, so the player doesn't have to know to right click to change chroma. Also add snapping to other module's positions/alignments.

[PepperLola]

There is now an options bar for each widget that lets you enable and disable the module, chroma, and the background, as well as opening the options GUI for the module.

TODO: Widget position snapping

[PepperLola]

Widget position snapping is done now and works pretty well, still somewhat inconsistent with snapping to the bottom of elements.