Library: Adding a album for a non-album artist to play queue should only add artist's own tracks
Currently, albums in the library can show up in one of two ways:
- If the artist is the Album Artist for the album, the entire album is shown.
- If the artist is not the Album Artist for the album, but has songs for which they are the artist, only those songs are shown.
However, if an album is added to the play queue, all the tracks are added in both circumstances. When the artist is only a track's artist, only those tracks in the album by that artist should show.