Pontoon: Update Spanish (Mexico) (es-MX) localization of Test Pilot Website
Pontoon: Update Spanish (Mexico) (es-MX) localization of Test Pilot Website

Localization authors:
- Breana Gonzales <breanajones@hotmail.com>

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