Bump react-dom from 16.2.0 to 16.2.1 in /dashboard/assets (#3)

Bumps [react-dom](https://github.com/facebook/react/tree/HEAD/packages/react-dom) from 16.2.0 to 16.2.1.
- [Release notes](https://github.com/facebook/react/releases)
- [Changelog](https://github.com/facebook/react/blob/master/CHANGELOG.md)
- [Commits](https://github.com/facebook/react/commits/HEAD/packages/react-dom)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

dashboard/assets/package-lock.json

@@ -28,7 +28,7 @@
         "material-ui-icons": "^1.0.0-beta.17",
         "path": "^0.12.7",
         "react": "^16.2.0",
-        "react-dom": "^16.2.0",
+        "react-dom": "^16.2.1",
         "react-fa": "^5.0.0",
         "react-transition-group": "^2.2.1",
         "recharts": "^1.0.0-beta.9",