feat(locale): add Arabic locale support (#3726) r=vbudhram
feat(locale): add Arabic locale support (#3726) r=vbudhram
shane-tomlinson/fxa-content-server,vladikoff/fxa-content-server,shane-tomlinson/fxa-content-server,mozilla/fxa-content-server,vladikoff/fxa-content-server,vladikoff/fxa-content-server,mozilla/fxa-content-server,mozilla/fxa-content-server,shane-tomlinson/fxa-content-server