Draft: wayland: Fix "non-"reactive xdg popups
xdg_positioner.set_reactive indicates whether the popup has to reconstrained after the parent window moves, etc. If it's false, the popup has still to move together with its parent.
xdg_positioner.set_reactive indicates whether the popup has to reconstrained after the parent window moves, etc. If it's false, the popup has still to move together with its parent.