[Meta] Updated related communities

Just an fyi for everyone. I've updated the related communities section in the sidebar. The following have been added:

• !filmsframes@lemmy.world
• !silentfilmgifs@lemmy.world
• !filmpostersporn@lemmy.world

Also !television@lemm.ee is the primary community for TV news and discussion on lemm.ee now.

Please check out these communities if you're interested.