Pontoon: Update Czech (cs) localization of Firefox Screenshots
Pontoon: Update Czech (cs) localization of Firefox Screenshots

Localization authors:
- Michal Stanke <mstanke@mozilla.cz>

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