I think it makes more sense to have the collection manage if banned
tracks are displayed or not, rather than doing this from the playlist
layer.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
This is much more convenient to users, since they don't need to update
the collection manually.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>