Add an emotes-only chat filter

[Nnystyxx]

See title. I know there's the Misc option in the chat filters but I honestly have no idea what else it mutes besides emotes, and I want to be able to tell what the fuck is happening on the escape shuttle when literally everyone is farting and crowding the entire chatbox.

But of course I want that to be optional, because sometimes you just gotta farty party with the rest of 'em.

UPDATE: Misc filters out a lot of things, like throwing, kicking the captain display case, etc