Muting a channel should probably mark the channel as read

This sounds a little unintuitive to me also though. It probably wouldn't matter to anyone in the end but I wouldn't expect messages to be read by marking as muted, I would expect if I mute and unmute, it be in the same state I left it. Of course, the longer it's left this way usually it would be untrue anyway since usually chat platforms have some kind of skip-ahead mechanic when you haven't read a channel in days and that's why I think it ultimately wouldn't be noticed, but just a thought