[TV] Merge conflict fixes, Removed 'searcher.get_media_searcher_id'

As discussed awhile ago I've removed the need for 'searcher.get_media_searcher_id' by changing the 'provider.search...' event to use media types instead of searcher names.

I've also fixed some issues from the previous merge (references to Release.movie instead of Release.media) and some duplicate methods that were actually moved between plugins.