build(deps-dev): bump @types/node from 26.2.0 to 26.4.1 in /frontend

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 26.2.0 to 26.4.1.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

---
updated-dependencies:
- dependency-name: "@types/node"
  dependency-version: 26.4.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

frontend/package.json

@@ -22,7 +22,7 @@
   },
   "devDependencies": {
     "@tailwindcss/vite": "^4.3.3",
-    "@types/node": "^26.2.0",
+    "@types/node": "^26.4.1",
     "@types/react": "^19.2.18",
     "@types/react-dom": "^19.2.4",
     "@vitejs/plugin-react": "^6.0.5",