Pontoon: Update Italian (it) localization of Test Pilot Website
Pontoon: Update Italian (it) localization of Test Pilot Website

Localization authors:
- Sav22999 <saverio.morelli@outlook.it>

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