Add localizations for first three languages

[tolzhabayev]

Follow this guide https://grafana.com/developers/plugin-tools/how-to-guides/plugin-internationalization

Start with en-US, es-ES, de-DE based off https://ops.grafana-ops.net/d/WEoVq3tVz/fe-platform-languages-and-internationalization?orgId=1&from=now-2d&to=now&timezone=browser&viewPanel=panel-10