Enhancement: Add Collections

[RXWatcher]

Can you please consider adding collections? If you drill into a Library there could be a collections tab which would mimic how plex does it.

Collections tab:

If you click into the collection you get a list of Shows and Movies. A Collection can contain both. If you click into the show/movie then you get its description.

Thanks again and if I can help in any way, please ask.

[Ricardo Reis]

@RXWatcher
Hey, I decided to refactor this entire repo to a more robust and modern stack. Please take a look at: https://github.com/plckr/plexlv
There are a lot more features than this version, take a look and see what you think.
For now, I recommend deploying it in Vercel