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

Localization authors:
- Alpha <adrien.gat@gmail.com>

kumar303/addons-frontend,mozilla/addons-frontend,mozilla/addons-frontend,kumar303/addons-frontend,kumar303/addons-frontend,mozilla/addons-frontend,tsl143/addons-frontend,tsl143/addons-frontend,tsl143/addons-frontend,tsl143/addons-frontend,kumar303/addons-frontend,mozilla/addons-frontend