Version 28.7

• fix compability with ffmpeg 6
• web UI improvements:
  • easier volume sliders
  • incorrect display of genre
  • Chinese translation
  • fix removing RSS podcasts
  • sort by rating for composer, genre and artist tracks
  • (and much more)
• changes to artwork search orders (easier static artwork for pipes)
• major refactor of the http server improving mp3 streaming
• support for m3u8 playlist files
• allow mixed ipv4/ipv6 mdns
• fix issue with device name capitalization (TuneAero issue)
• drop support for libevent < 2.1.4