Make Settings work on mobile

Let's make Settings work on mobile phones for the release of GNOME 3.32. :) Initiatives#5

Preliminary shell adaptation: https://gitlab.gnome.org/Community/Purism/gnome-control-center/tree/wip/aplazas/adaptive-shell
Preliminary panels adaptation: https://gitlab.gnome.org/Community/Purism/gnome-control-center/tree/wip/aplazas/adaptive-panels

Edited Oct 12, 2018 by Adrien Plazas