Pontoon: Update French (fr) localization of AMO Frontend
Pontoon: Update French (fr) localization of AMO Frontend

Localization authors:
- YD <ygda+fx@free.fr>

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