Pontoon: Update English (Great Britain) (en-GB) localization of AMO
Pontoon: Update English (Great Britain) (en-GB) localization of AMO

Co-authored-by: Waldo Luis Ribeiro <2951cd8c1d162145c708b45b3e327e658dd6e851@sapo.pt>

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