Pontoon: Update Asturian (ast) localization of Firefox Screenshots
Pontoon: Update Asturian (ast) localization of Firefox Screenshots

Localization authors:
- Enol <enolp@softastur.org>

mozilla-services/pageshot,mozilla-services/screenshots,mozilla-services/screenshots,mozilla-services/pageshot,mozilla-services/screenshots,mozilla-services/screenshots,mozilla-services/pageshot,mozilla-services/pageshot