Pontoon: Update Spanish (Argentina) (es-AR) localization of Firefox Screenshots
Pontoon: Update Spanish (Argentina) (es-AR) localization of Firefox Screenshots

Localization authors:
- Gabriela <gmontagu@gmail.com>

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