Fix playlist shuffle

- Shuffle all indexes
- Use persistent indexes to store play history
- Update virtual items to keep original shuffle order when the playlist is reordered
- Make sure to always set virtual index on manual shuffle
- Ignore repeat and shuffle when dynamic playlist is activated

Fixes #707
Fixes #1381
Fixes #1366
Fixes #1353

src/playlist/playlistmanager.cpp

@@ -381,8 +381,6 @@ void PlaylistManager::SetActivePlaylist(const int id) {
 
   emit ActiveChanged(active());
 
-  sequence_->set_dynamic(active()->is_dynamic());
-
 }
 
 void PlaylistManager::SetActiveToCurrent() {