Add Plex Link to Letterboxd

Adds a link to the movie based on the Title and year, to your plex instance. The first time you run it, it asks for the ip of the plex server and the plextoken (can be found using this link ).

update 3.1: It only shows when it finds the movie on your plex server.

It currently only works on www.letterboxd.com/film/*

Plans are there to also have it work on other pages.

Made using help of Chatgpt.