Bump react-router from 7.5.3 to 7.8.2 in /client

Bumps [react-router](https://github.com/remix-run/react-router/tree/HEAD/packages/react-router) from 7.5.3 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/CHANGELOG.md)
- [Commits](https://github.com/remix-run/react-router/commits/react-router@7.8.2/packages/react-router)

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

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

Author: dependabot[bot]

client/package-lock.json

@@ -28,7 +28,7 @@
         "react-error-boundary": "^6.0.0",
         "react-i18next": "^15.1.2",
         "react-icons": "^5.3.0",
-        "react-router": "^7.5.3",
+        "react-router": "^7.8.2",
         "zustand": "^5.0.7"
     },
     "devDependencies": {