Pontoon: Update Frisian (fy-NL) localization of Test Pilot Website
Pontoon: Update Frisian (fy-NL) localization of Test Pilot Website

Localization authors:
- Fjoerfoks <fryskefirefox@gmail.com>

flodolo/testpilot,mozilla/idea-town,flodolo/testpilot,flodolo/testpilot,mozilla/idea-town-server,mozilla/idea-town,flodolo/testpilot,mozilla/idea-town-server,mozilla/idea-town-server,mozilla/idea-town,mozilla/idea-town-server,mozilla/idea-town