
Implement the new design for the polkit according to the mockups in https://gitlab.gnome.org/GNOME/gnome-shell/issues/1343: - Center-align all the parts of the dialog - Use a larger user avatar - Remove the work-spinner because requests usually finish fast enough - Show the entry-labels as hint text of the entry https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/942