xfway: added support for alt-tab switcher

[adlo]

> On 2 Aug 2022, at 18:35, Gaël Bonithon <trash.paradise at protonmail.com> wrote:
> 
> I'm thinking in particular of protocols layer shell [1] and foreign toplevel management [2]. For the first one, a library already exists to make things easier: Gtk Layer Shell [3]. For the second one, which covers at least part of the Libwnck features, a small library could be written, if necessary (I haven't tried to tinker with it yet).

I agree, I think it would be interesting to port libwnck to wlroots.

I think wlr_foreign_toplevel doesn’t have a “geometry” property at the moment.

Regards
adlo