source code repo for icon-library

[christian kirbach gmail com]

Hello,

the German team would like to commit their initial translation of
gnome-library
https://l10n.gnome.org/module/icon-library/

However, I was unable to find its repository. I looked at gnome git and
searched the Internet, without success.

Can you point me to the repo where I can place a pull request?
Thanks.

Best regards
Christian