(cherry picked from commit d022679b7dcbce3cec98e6a1fd0879e3c0d92523)
Fixed: Restoring scroll position when going back/forward to artist list
(cherry picked from commit 5aad84dba453c42b4b5a9eac43deecf91a98f4f6)
* New: Unmapped files view
Displays all trackfiles that haven't been matched to a track.
Generalised the file details component and adds it to the album
details screen.
* Add sorting by quality
* New: MediaServiceTests & MediaRepoTests