User preferences: plugin-outlet "user-preferences-desktop-notifications" not translated

I noticed that the text “Prefer push notifications on desktop” in the user preferences here on meta is not localised:

The relevant code is here:

Is this a “Discourse Meta”-specific plugin outlet?

Ah, I just found here that this comes in fact from the official discourse-push-notifications plugin:

So it just doesn’t seem to be on Transifex yet. Who can fix this?