* Improve `media_content_type` in `media_extractor.play_media` action
In the UI the `media_content_type` field of the `media_extractor.play_media` action already presents a selector with the choices MUSIC, TVSHOW, VIDEO, EPISODE, CHANNEL or PLAYLIST MUSIC.
Therefore these can be removed from the field description to avoid any over-translation that will create an unnecessary mismatch in the UI.
* Fix casing of `media_extractor.play_media` action name
dfe1921737