* Allow Cast to play Plex media
* Add Plex to after_dependencies, add missing constant
* Extract function from Sonos service to allow media lookups
* Move to non-async method
* Check if media_id exists
* Add test to make codecov happy
* Add Plex service to refresh a library
* Clean up rebase leftovers
* Re-run black
* Fix docstring
Co-authored-by: Charles Garwood <cgarwood@newdealmultimedia.com>
Co-authored-by: Charles Garwood <cgarwood@newdealmultimedia.com>