Fix crash and QQS session issues, visual updates

- Fix crash when null session token
- Only update QQS when it gets a different and active media session
- Fix crash when changing dark mode, due to QQS width/height calculated as 0
- Move QS carousel layout to xml
- Increase horizontal spacing for QQS player
- Tapping QQS player opens the app
- Use play button icon instead of restart icon when media session was ended

Fixes: 146897913
Fixes: 146561456
Test: manual, switch between two different sessions from QS and observe QQS
updates correctly

Change-Id: I5a93a2a9d7037572561a0479365c022013e05ec7