Scrobble Menu: Jump to Show from an episode in On Deck, Recently Added or Recently Aired.

Thought it might be useful to have an option to jump to the TV Show itself from On Deck, etc.

All constructive comments on the code are very welcome - I've only just started messing around with PlexConnect over the last few days to see if I can add things I think are useful. Not 100% sure how some of the existing code works, so made some guesses!