List supported languages

{
  "data": {
    "languages": [
      {
        "language": "<string>",
        "name": "<string>"
      }
    ]
  }
}

{
  "statusCode": 401,
  "message": "Invalid API key",
  "data": {
    "code": "AUTH_INVALID"
  }
}

{
  "statusCode": 403,
  "message": "API key does not have access to translation service",
  "data": {
    "code": "PERMISSION_DENIED"
  }
}