Flat conversation view for private groups
A user asked for private groups to be shown in a flat (unthreaded) view.
We've had requests for this before and never opened a ticket because a simple flat view based on message creation time or arrival time wouldn't work well with Briar's asynchronous message delivery. But apps like Slack and Mattermost have experimented with new ways to show asynchronous replies in a flat view, so perhaps the request should be considered.