Version 27.2

• web UI upgraded to v0.7.2:
  • show cover artwork in album pages and lazy loading of artwork
  • show playlist folders
  • use sass/scss for css files
  • add "Radio" tab to the music section
  • add settings for artwork sources
  • add pop up dialog for Remote pairing requests
  • support adding/removing podcast subscriptions
  • support marking all new podcast episodes/all episodes as played
  • support searching by smart pl queries
  • skip buttons for audiobooks and podcasts
  • show localized times/dates
  • generate colored placeholder image if cover artwork is missing
  • show "cast" icon for Chromecast outputs
  • styling changes of the navbars and moving the volume controls
• new speaker selection logic (persist user choice even after failure)
• speaker autoselect no longer enabled by default
• removed old admin page, not necessary any more
• fix/workaround for Apple TV's and HomePods that disconnect
• support for RSS feeds
• support for nested smart playlists (playlist folders)
• support for online artwork sources e.g. Discogs, Coverartarchive
• support for radio StreamUrl's that point to json with metadata
• fix incorrect artwork shown for unknown album/artists
• fix issue parsing shairport-sync progress metadata
• fix missing Spofity logout option
• fix for embedded artwork not working with ffmpeg 4.3+
• some smart PL improvements, e.g. support for more tags
• config option for Airplay timing/control ports (eases firewalling)
• quicker loading of radio streams (smaller probing)
• workaround for mxml 2.10 significant memleak
• some fixes for Roku (RSP)
• drop libspotify for artwork, doesn't work any more
• documentation improvements