Bump react-router-dom from 5.3.4 to 7.9.4

Bumps [react-router-dom](https://github.com/remix-run/react-router/tree/HEAD/packages/react-router-dom) from 5.3.4 to 7.9.4.
- [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@7.9.4/packages/react-router-dom)

---
updated-dependencies:
- dependency-name: react-router-dom
  dependency-version: 7.9.4
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -58,7 +58,7 @@
     "react-dom": "~17.0.0",
     "react-ga4": "~2.1.0",
     "react-katex": "^3.0.1",
-    "react-router-dom": "~5.3.0",
+    "react-router-dom": "~7.9.4",
     "react-test-renderer": "~17.0.0",
     "react-transition-group": "~4.4.1",
     "rheostat": "~4.1.1",