Pontoon: Update Czech (cs) localization of Test Pilot Website
Pontoon: Update Czech (cs) localization of Test Pilot Website

Localization authors:
- Michal Vašíček <michalvasicek@icloud.com>

fzzzy/testpilot,mathjazz/testpilot,lmorchard/idea-town-server,mozilla/idea-town,mathjazz/testpilot,chuckharmston/testpilot,meandavejustice/testpilot,mozilla/idea-town,lmorchard/idea-town-server,fzzzy/testpilot,lmorchard/idea-town,mozilla/idea-town-server,chuckharmston/testpilot,lmorchard/testpilot,lmorchard/idea-town,lmorchard/idea-town-server,lmorchard/idea-town,lmorchard/testpilot,mozilla/idea-town-server,mozilla/idea-town,chuckharmston/testpilot,flodolo/testpilot,meandavejustice/testpilot,meandavejustice/testpilot,meandavejustice/testpilot,lmorchard/testpilot,chuckharmston/testpilot,mozilla/idea-town-server,mozilla/idea-town,fzzzy/testpilot,mozilla/idea-town-server,flodolo/testpilot,lmorchard/idea-town,lmorchard/testpilot,lmorchard/idea-town-server,fzzzy/testpilot,mathjazz/testpilot,flodolo/testpilot,flodolo/testpilot,mathjazz/testpilot