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

Co-authored-by: Benoit Leseul <d92bd3bf5eb9ee2d4100db869a3ca154d6b7eaa1@gmail.com>

bqbn/addons-server,mozilla/olympia,wagnerand/addons-server,mozilla/addons-server,mozilla/olympia,bqbn/addons-server,diox/olympia,mozilla/addons-server,bqbn/addons-server,wagnerand/addons-server,bqbn/addons-server,mozilla/addons-server,diox/olympia,mozilla/addons-server,diox/olympia,mozilla/olympia,mozilla/olympia,wagnerand/addons-server,wagnerand/addons-server,diox/olympia