wayland: Implement xdg-shell v5
In v5, the xdg_toplevel.wm_capabilities event had been introduced which specifies a list of actions allowed by the compositors. Mainly useful to client-side decorated apps.
In v5, the xdg_toplevel.wm_capabilities event had been introduced which specifies a list of actions allowed by the compositors. Mainly useful to client-side decorated apps.