Port to GTK4

[PowaBanga]

Hi everybody,
I post this issue only for request the port of this the to Gtk4.

If anybody have information about that, you are welcome :)

[Elbullazul]

it's going to come eventually, but I have various problems when using GNOME 40, so it may take some time to get work going

[Elbullazul]

you can see the progress here

[Elbullazul]

8454a2b adds experimental support for GTK4, with more improvements coming in the next few weeks