Remove `Editor.Option.ShortcutContext`
Strip native shortcuts from `Editor.Shortcut` class. Make class internal.
Documentation cleanup
Update Shortcut.Invoke so it handles Mode logic
EditorShortcut.Invoke is now a bool returning whether or not a shortcut was invoked from the pressed keys
Shortcuts are now invoked from Sandbox.Tools instead of thru native QT shortcut.
Make `scene.fullscreen` (F4) bind static. Fixes rebuilding issue.