deps(npm): bump @vitejs/plugin-react from 5.2.0 to 6.0.1 in /frontend

Bumps [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/tree/HEAD/packages/plugin-react) from 5.2.0 to 6.0.1.
- [Release notes](https://github.com/vitejs/vite-plugin-react/releases)
- [Changelog](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react/CHANGELOG.md)
- [Commits](https://github.com/vitejs/vite-plugin-react/commits/plugin-react@6.0.1/packages/plugin-react)

---
updated-dependencies:
- dependency-name: "@vitejs/plugin-react"
  dependency-version: 6.0.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

frontend/package.json

@@ -36,7 +36,7 @@
   },
   "dependencies": {
     "@tailwindcss/vite": "^4.1.18",
-    "@vitejs/plugin-react": "^5.1.2",
+    "@vitejs/plugin-react": "^6.0.1",
     "framer-motion": "^12.24.12",
     "i18next": "^25.7.4",
     "react": "^19.2.3",