* feat(deck): Implement optional support for switching to GNOME on Wayland
This adds a variable, DESKTOP_WAYLAND, to /etc/default/desktop-wayland that gets sourced
by steamos-session-select and determines whether or not to use Wayland or X11. By default,
this ships as false
* feat(deck): Implement optional support for switching to Plasma on Wayland
* feat(deck): Add hidden just script to toggle Wayland desktop session
Omitted from 'just list'
* feat(gnome): Use GDM on desktop
Restores GDM on desktop and implements GNOME autologin with GDM support. This allows
users to use screen locking. Omitted from Steam Deck as there isn't a seemingly clean
way to implement this for session switching. Will investigate in the future
* fix(gnome): Restore patched xorg-x11-server-Xwayland package for VRR
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Co-authored-by: Kyle Gospodnetich <me@kylegospodneti.ch>