Also decouples the bindable at SongSelect, where it is debounced in line with the carousel being updated.
Allows it to integrate better with existing buttons, like HeaderButton.
# Conflicts: # osu.Game/Beatmaps/RankStatus.cs # osu.Game/Online/API/Requests/SearchBeatmapSetsRequest.cs # osu.Game/Overlays/Direct/FilterControl.cs # osu.Game/Overlays/DirectOverlay.cs