Pontoon: Update Catalan (ca) localization of Firefox Screenshots
Pontoon: Update Catalan (ca) localization of Firefox Screenshots

Localization authors:
- Jordi Serratosa <jordis@softcatala.cat>

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