* Add source as parameter to beolink join service
* Add beolink join source and responses
* Improve comment
Add translation
* Remove result from beolink join custom action
* Cleanup
* Use options selector instead of string for source ID
Fix test docstring
* Update options
* Use translation dict for source ids
Add input validation
Add tests for invalid sources
Improve source id description
* Use list instead of translation dict
Remove platform prefixes
Add test for Beolink Converter source
* Fix source_id naming and order