ui/gtk: Use consistent naming for variables in different coordinates Now that we've documented definitions and presentation of various coordinates, let's enforce the rules. Signed-off-by: Weifeng Liu <weifeng.liu.z@gmail.com> Message-ID: <20250511073337.876650-3-weifeng.liu.z@gmail.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Marc-André Lureau <marcandre.lureau@redhat.com>