Pontoon: Update Greek (el) localization of AMO Frontend
Pontoon: Update Greek (el) localization of AMO Frontend

Co-authored-by: Jim Spentzos <91ead497847ecfd07b15cc13ed401636eb0bf852@gmail.com>
Co-authored-by: George kitsoukakis <f2c2009827442026a4d1f9abc009c387bee99df1@gmail.com>

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