Add GNOME 47 to version list

[nilson-santos]

AFAICT based on https://gjs.guide/extensions/upgrading/gnome-shell-47.html, there's nothing else to do for compatibility. #158

[darslim]

Thanks, I just edited meta.json to add shell version 47 before make and make install - works fine for me.

[jameskitt616]

I would highly appreciate this being released soon :)
Since the changes are so minor and don't require and real code changes, i see no reason why this is held back so long, especially since many distros (like Fedora) already use GNOME 47.

Thanks for this awesome Extension and yall awesome work <3