Fix the sleep timer in audio mode
When playing audio and the sleep timer intent is received, the playback is stopped.
Motivation and Context
There was a regression and the sleep timer was not working when there was an audio playback
How Has This Been Tested?
Emulator API 28
Screenshots / GIFs (if appropriate):
Types of changes
- Bug fix (non-breaking change which fixes an issue)
- New feature (non-breaking change which adds functionality)
- Enhancement (non-breaking change which cleans up / improves existing functionality)
- Breaking change (fix or feature that would cause existing functionality to change)
- I have read the CONTRIBUTING section of the README document.
Fixes: #833 (closed)