A comment sorting option called “Chat” and “Forum”

On the official Lemmy web UI, you can sort comments by Hot, Top, New, Old and Chat. Please add a Chat sorting option.

Also, please add a “Forum” sorting option which will be the same as Chat except in reverse, showing the oldest comment first to the newest comments last, and will be ordered like a forum thread.

https://github.com/LemmyNet/lemmy-ui/issues/602