Pontoon: Update Polish (pl) localization of Firefox Screenshots
Pontoon: Update Polish (pl) localization of Firefox Screenshots

Localization authors:
- Piotr Drąg <piotrdrag@gmail.com>

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