Bump react-router-dom from 5.3.4 to 7.18.1

Bumps [react-router-dom](https://github.com/remix-run/react-router/tree/HEAD/packages/react-router-dom) from 5.3.4 to 7.18.1.
- [Release notes](https://github.com/remix-run/react-router/releases)
- [Changelog](https://github.com/remix-run/react-router/blob/react-router-dom@7.18.1/packages/react-router-dom/CHANGELOG.md)
- [Commits](https://github.com/remix-run/react-router/commits/react-router-dom@7.18.1/packages/react-router-dom)

---
updated-dependencies:
- dependency-name: react-router-dom
  dependency-version: 7.18.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

client/package.json

@@ -20,7 +20,7 @@
     "react-ga4": "^3.0.1",
     "react-markdown": "6.0.3",
     "react-redux": "^9.3.0",
-    "react-router-dom": "^5.3.4",
+    "react-router-dom": "^7.18.1",
     "react-twitch-embed": "^3.0.2",
     "react-virtualized": "^9.22.6",
     "redux": "^4.2.1",