Scrollbar should be grabbable at right edge of window
Presently, gajim has a margin between the farthest right scrollbar and the edge of the window. I would like to be able to have gajim maximized and use the edge of the screen as a sort of fence that allows me to easily grab the scrollbar by moving the pointer to the very edge of the display. As it is currently, I don't see this margin serving any good purpose, visual or otherwise. The easier it is to grab the scrollbar, the better. For example, gnome-terminal and firefox both have the sort of behavior I desire here. After having this more sensible scrollbar configuration, anything else feels almost intentionally frustrating.