mouse: Invert left-right button order for RTL locales
In Right-to-left locales, GNOME Settings presents a button on the left with the translated label "Right" and a button on the right with the translated label "Left".
Fixes #1101 (closed)
In Right-to-left locales, GNOME Settings presents a button on the left with the translated label "Right" and a button on the right with the translated label "Left".
Fixes #1101 (closed)