With the BottomSheet open, while trying to tap one of the
controls (esp. add to playlist and favorite buttons) it is easy to
miss the touch point and tap directly on the BottomSheet.
This tap bleeds through to whatever fragment is currently displayed in
the navigation area (Artist, Album, Playlists, etc.). That tap
changes the view in the navigation panel. For example, if the Artist
fragment it current, it will open a list of the artists albums.
That change may be surprising when the BottomSheet is toggled closed.
So, ignore BottomSheet taps outside the active controls.
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