2.2.0 BETA 7

ATTENTION SPOTIFY USERS:
This release requires you (again) to authenticate but the good news is that we managed to get a full (official/recommended) PKCE login flow going for both library management and playback.

What's Changed

• Add demo/template providers by @marcelveldt in #1566
• Fix issues with items become unavailable by @marcelveldt in #1567
• Apple Music: Change log level to avoid chatty logs. by @MarvinSchenkel in #1568
• Various optimizations to filesystem metadata retrieval by @marcelveldt in #1569
• Implement Spotify (oauth) PKCE Login flow by @marcelveldt in #1570

Full Changelog: 2.2.0b6...2.2.0b7