Add labels when forwarding a post

[Rnbsov]

I don't know how hard that would be, but it would be great to have the ability to add labels while forwarding a link/message with a link from a channel.

Again taking the example from HackerNews Feed, it would be super useful to hit the forward button and add a message containing the labels. Telegram calls that " Add a comment" in the forwarding menu. See the screenshots below for an illustration.

Originally posted by @vronizor in #5 (comment)