Pontoon: Update Portuguese (Brazil) (pt-BR) localization of AMO Frontend
Pontoon: Update Portuguese (Brazil) (pt-BR) localization of AMO Frontend

Localization authors:
- Marcelo Ghelman <marcelo.ghelman@gmail.com>

mozilla/addons-frontend,mozilla/addons-frontend,mozilla/addons-frontend,kumar303/addons-frontend,kumar303/addons-frontend,kumar303/addons-frontend,kumar303/addons-frontend,mozilla/addons-frontend