message: [fix] add region exposure to auspice config to avoid export failure
diff: "key": "subclade_membership",
  "title": "Emerging clade",
  "type": "categorical"
  + },
  + {
  + "key": "region_exposure",
  + "title": "Region of exposure",
  + "type": "categorical"
  }
  ],
  "geo_resolutions": [
  