Pontoon: Update Turkish (tr) localization of Firefox Screenshots
Pontoon: Update Turkish (tr) localization of Firefox Screenshots

Localization authors:
- Selim Şumlu <selim@sum.lu>

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