When you hold down "super" for an extended period of time, we should show a little cheatsheet containing all of the currently mapped keybinds

[Matthew Kosarek]

This would be very much akin to CS2's "crosshair guides" that come on when you left click for a long period of time

Requirements

• When a user holds down their meta key for a configurable period of time, an overlay "cheatsheet" should appear containing their keybinds
• This cheatsheet should be a privileged client who has access to this information about the compositor
• The client could either (1) be spawned by the compositor or (2) listen to the global keys portal [(1) may be easier in the meantime]