Migration from Gtk3 to Gtk4 and libadwaita 1.7

[Scroker]

This pull request collects the changes I made in order to move the UI of the application from gtk3 to gtk4 and libadwaita 1.7. The version of gnome that is compatible to date is 48.
In general I tried to reuse as much code as possible but obviously the js and xml files related to the UI component are deeply changed. On the daemon instead I intervened almost exclusively to make it compatible with Gtk4.
Finally I reorganized the icon part of the gresource to natively get an Icon Theme.

[github-actions]

All conflicts have been resolved, thanks!

[github-actions]

This pull request has conflicts, please resolve those so that the changes can be evaluated.

[olumolu]

what is the status of this

[LorierMatthieu]

what is the status of this

The port to Gtk4 is completely functional. I personally use it in everyday life. But it hasn’t been merged yet, and I don’t know when or if it will be. If it can help you, I made this little script to build and install the Gtk4 port:

cd gnome-shell-extension-gsconnect/

meson setup _build . --reconfigure
ninja -C _build install-zip```

Run it after you clone GSConnect.

[olumolu]

it is working why not just merge it

[GuyDebord]

Yeah the development regarding the GTK4 port has been really disappointing

[obaidabit]

Hope this get merge soon we've been waiting for long 😢

[github-actions]

All conflicts have been resolved, thanks!

[Scroker]

For the first time, the code now passes the entire test suite. The only change required was updating the SMS test, as the handleDigest function has been replaced by handleMessages. I also initially encountered issues with the Clipboard test, but after rerunning it today the problem no longer occurs.

IMPORTANT
I understand that this pull request touches a significant portion of the codebase, and that reviewing such changes requires careful attention to ensure that no regressions have been introduced. I completely understand if maintainers prefer to take the time needed to review it thoroughly before merging.

In the meantime, for anyone interested in trying out these changes, the code can already be downloaded and installed by following the instructions in CONTRIBUTING.md. Any feedback, testing results, or reports of issues would be greatly appreciated and will help ensure the stability of the changes.

[JaredTweed]

@ferdnyc Is there any reason why this isn't yet merged? I really look forward to gtk4 for this.

[olumolu]

why not merge it @Scroker