fix(config): adjust local dev config to support signin confirmation (#1313) r=vbudhram,shane-tomlinson
fix(config): adjust local dev config to support signin confirmation (#1313) r=vbudhram,shane-tomlinson


shane-tomlinson/fxa-auth-server,mozilla/fxa-auth-server,shane-tomlinson/fxa-auth-server,eoger/fxa-auth-server,eoger/fxa-auth-server,mozilla/fxa-auth-server,eoger/fxa-auth-server,shane-tomlinson/fxa-auth-server,shane-tomlinson/fxa-auth-server,mozilla/fxa-auth-server,mozilla/fxa-auth-server,eoger/fxa-auth-server