Features request: show only unread channels/chats/groups

[kalloc]

Hi.
I would like to have a feature showing only unread channels, group, and chats. Sometimes I'm trying to find all unread chats, and searching is annoying me. It's the first missing feature.

Second missed feature is tabbed filters for channels and group chats. I use telegram as team messenger, also I use it for private communications. It will be nice to have something like a switch between work and personal channels/groups.

[kalloc]

#275 looks closer to my request, but I need a little bit more