Pontoon: Update Khmer (km) localization of Firefox Screenshots
Pontoon: Update Khmer (km) localization of Firefox Screenshots

Localization authors:
- Phearoun <phel.phearoun@gmail.com>

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