Third-party Shell extensions on DL?

[Petr Kovar <pmkovar gnome org>]

Fellow translators,

Marek Černocký mentioned to me the other day it might be a good idea for
DL to start tracking translation stats for third-party GNOME Shell
extensions (usually hosted on GitHub these days, I believe), similarly to
what we already have in https://l10n.gnome.org/releases/freedesktop-org/. I
thought I'd bring up this idea here.

Thoughts?

Cheers,
pk