Pontoon: Update German (de) localization of Firefox Screenshots
Pontoon: Update German (de) localization of Firefox Screenshots

Localization authors:
- Michael Köhler <michael.koehler1@gmx.de>

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