Pontoon: Update Spanish (Argentina) (es-AR) localization of WebThings Gateway
Pontoon: Update Spanish (Argentina) (es-AR) localization of WebThings Gateway

Localization authors:
- Gabriela <gmontagu@gmail.com>

mozilla-iot/gateway,mozilla-iot/gateway,moziot/gateway,mozilla-iot/gateway,moziot/gateway,moziot/gateway,mozilla-iot/gateway,mozilla-iot/gateway