Show 'error' or some other icon while we're waiting to reconnect
A small majority of icon themes has an animated 'reconnecting' icon, although the default theme hasn't. Moving icon suggests activity, which I think is the wrong signal when Gajim is just sitting and waiting for its reconnect timer.
Here's a minimal patch which causes the 'error' icon to be shown while waiting, and 'reconnecting' icon only when actually trying to connect. It's very hackish and i don't really like it, nor can I promise there won't be strange side-effects, so it's a patch and not a commit.