Eleven: Show empty message after clearing all

* When clearing any of the preexisting playlists (recently played, ...)
  the view currently stays empty
* This is due to the "no results" container being part of the "Loading"
  one, so display that one as well

Test:
- Go to Playlists -> Recently played
- Three-dot-menu -> Clear list
Before:
- List is now just empty
After:
- List changes to "No recent songs" view

Change-Id: I7785b5ed2b55e1451b1afc80b7c6433728b1a11a