Bump react-router and react-router-dom in /ui/frontend

Bumps [react-router](https://github.com/remix-run/react-router/tree/HEAD/packages/react-router) to 6.30.3 and updates ancestor dependency [react-router-dom](https://github.com/remix-run/react-router/tree/HEAD/packages/react-router-dom). These dependencies need to be updated together.


Updates `react-router` from 6.20.1 to 6.30.3
- [Release notes](https://github.com/remix-run/react-router/releases)
- [Changelog](https://github.com/remix-run/react-router/blob/react-router@6.30.3/packages/react-router/CHANGELOG.md)
- [Commits](https://github.com/remix-run/react-router/commits/react-router@6.30.3/packages/react-router)

Updates `react-router-dom` from 6.20.1 to 6.30.3
- [Release notes](https://github.com/remix-run/react-router/releases)
- [Changelog](https://github.com/remix-run/react-router/blob/main/CHANGELOG.md)
- [Commits](https://github.com/remix-run/react-router/commits/react-router-dom@6.30.3/packages/react-router-dom)

---
updated-dependencies:
- dependency-name: react-router
  dependency-version: 6.30.3
  dependency-type: indirect
- dependency-name: react-router-dom
  dependency-version: 6.30.3
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

ui/frontend/package-lock.json

@@ -39,7 +39,7 @@
     "react-markdown": "^8.0.7",
     "react-micro-bar-chart": "^1.1.1",
     "react-redux": "^8.1.3",
-    "react-router-dom": "^6.6.1",
+    "react-router-dom": "^6.30.3",
     "react-router-hash-link": "^2.4.3",
     "react-scripts": "5.0.1",
     "react-select": "^5.7.2",