Bump react-router-dom from 7.8.1 to 7.8.2 in /ui/extensions/hello (#38)

Bumps [react-router-dom](https://github.com/remix-run/react-router/tree/HEAD/packages/react-router-dom) from 7.8.1 to 7.8.2.
- [Release notes](https://github.com/remix-run/react-router/releases)
- [Changelog](https://github.com/remix-run/react-router/blob/main/packages/react-router-dom/CHANGELOG.md)
- [Commits](https://github.com/remix-run/react-router/commits/react-router-dom@7.8.2/packages/react-router-dom)

---
updated-dependencies:
- dependency-name: react-router-dom
  dependency-version: 7.8.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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ui/extensions/hello/package-lock.json

@@ -19,7 +19,7 @@
     "@shoelace-style/shoelace": "^2.20.1",
     "react": "19.1.1",
     "react-dom": "19.1.1",
-    "react-router-dom": "7.8.1"
+    "react-router-dom": "7.8.2"
   },
   "devDependencies": {
     "@babel/core": "7.28.3",