Pontoon: Update Slovenian (sl) localization of AMO Frontend
Pontoon: Update Slovenian (sl) localization of AMO Frontend

Co-authored-by: Rok Žerdin <c3af732e741f035d73afdd9dca4a61794ab034f7@gmail.com>

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