relays: add relay pic view for displaying relay icons (ericholguin)

deps: add tldextract (William Casarin)

emojis: make width dynamic and font bigger (Suhail Saqan)

pushed to damus:refs/heads/master

http://git.jb55.com/damus/commit/7baf7e66dc4a8cdc9c7c465e2a9d82dc6d9e5c30.html