Pontoon: Update Lithuanian (lt) localization of Firefox Screenshots
Pontoon: Update Lithuanian (lt) localization of Firefox Screenshots

Localization authors:
- Paulius <paulius@mozilla.lt>

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