Pontoon: Update Italian (it) localization of Firefox Screenshots
Pontoon: Update Italian (it) localization of Firefox Screenshots

Localization authors:
- Winfox <openlib@email.it>

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