Check the window's _travel callback matches what we are trying to browse.
(Prevent the window from creating two browsers)

if you want to kill gajim this does nothing. just ash htop the PID of python proc that runs gajim and kill -9 PID

we can now handeled timeouts: when we don't receive registration info within 30 secondes, we show an information window

new draw_avatar function that is called only when needed

conflict.