Music Assistant

- Drop empty sources from artist rows and use metadata providers for top tracks (#1166)
- Show audiobook chapters in the Android Auto queue (#1164)
- Add user documentation for Android Auto (#1163)
- Show title and transport controls in the media notification on Android pre-13 (#1162)
- Summon ai dj (#1086)
- Show a one-time swipe hint between players in the expanded player (#1159)
- Keep the DSP preset checkmark when toggling DSP on/off (#1158)
- Part 3 of 3 for #769. Based on the coalescing PR