Letterboxd support

[dredvard]

List-Sync fixes a major hole in the jellyfin pipeline. There are watchlists that import into jellyfin as collections but no way to do it within jellyseerr. This project allows you to both import the watchlist and then have it automatically added into

This project includes additional support lists (including letterboxd)

https://github.com/ghomasHudson/Jellyfin-Auto-Collections

This project scrapes from user watchlist:

https://github.com/MathisVerstrepen/letterboxd-jellyfin

The idea would be to use the plugin structure from Auto-Collections to collect the lists. I'll see if I can do a pull to implement this.