[bug#50850] [core-updates-frozen] Update to GNOME 40.

[Maxim Cournoyer <maxim.cournoyer@gmail.com>]

Hello Mathieu,

Mathieu Othacehe <othacehe@gnu.org> writes:

> Hello,
>
> While fixing the GNOME packages build on the core-updates-frozen branch,
> I noticed that some of them were really outdated.
>
> Based on Raghav's work on the wip-gnome branch, there is a now a
> wip-gnome40[1] branch that performs a full upgrade to GNOME 40. I also
> fixed some of the GNOME integration issues we had:
>
> - Added gnome-photos and gnome-music to the meta gnome package.
> - Fixed gnome-weather integration[2].
> - Fixed gnome-music start[3].
> - Fixed gnome-todo build[4].
>
> This branch can be tested this way:
>
> ./pre-inst-env guix system vm gnu/system/examples/desktop.tmpl 
>
> Given that the changes are almost restricted to the gnome.scm file, I
> think that we can reasonably merge it inside the core-updates-frozen
> branch soon.

Cool!  Sounds good.

Maxim