- update to version 28.3
* web UI improvements, e.g.:
* composer views
* partial scan (e.g. only update RSS feeds)
* fix http stream button not clickable in mobile view
* fix Spotify playlists not showing
* handling of not playable Spotify tracks
* handling of podcast play counts
* support for Spotify podcasts
* updates for ffmpeg 5
* better Spotify logout
* user "usermark" field for user flagging of various track states
* fix for 0-byte files crashing ffmpeg
* fix metadata pipe deadlock and artwork memleak-on-error
* better handling of Spotify disconnects
* fix rare Airplay pairing error
* many minor error handling fixes

- Added hardening to systemd service(s) (bsc#1181400). Added patch(es):
* harden_owntone.service.patch