Complete CarPlay library

• Podcasts: filter an episode list by Played/Unplayed with one tap, redundant prefix removed
• Widgets now pick up the cover colour, artwork rotates once an hour
• Live radio shows the actual song and artist instead of just the station name
• CarPlay Library complete: Album Artists, Artists, Genres, Songs, Radios and Favourites
• Listen Later is now silently provisioned on first connect and consolidated across devices
• Pinch to zoom the cover, then drag it with one finger
• Settings reorganized into nine logical sections
• Various fixes, including the IAP reset and CarPlay favourites