Allows progressing forwards in the interface
-don't directly set AllowOverlay Bindable this should be done specifically where needed -remove AllowOverlay Bindable from ButtonSystem -remove unnecessary xmldoc
+ fix Toolbar being toggleable when it shouldn't be able to + allow opening overlays in MenuState.Initial again
ShowOverlays -> AllowOverlays ShowOverlaysOnEnter -> HideOverlaysOnEnter
This was causing weird behaviour with the key configuration section and back button in settings.
Also allows wheel events to pass through around them.