Bump vite from 6.3.5 to 6.4.1 in /app (#603)

Bumps [vite](https://github.com/vitejs/vite/tree/HEAD/packages/vite) from 6.3.5 to 6.4.1.
- [Release notes](https://github.com/vitejs/vite/releases)
- [Changelog](https://github.com/vitejs/vite/blob/main/packages/vite/CHANGELOG.md)
- [Commits](https://github.com/vitejs/vite/commits/create-vite@6.4.1/packages/vite)

---
updated-dependencies:
- dependency-name: vite
  dependency-version: 6.4.1
  dependency-type: direct:development
...

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app/package.json

@@ -41,7 +41,7 @@
     "jsdom": "^26.0.0",
     "tailwindcss": "^4.1.3",
     "typescript": "^5.7.2",
-    "vite": "^6.3.5",
+    "vite": "^6.4.1",
     "vite-plugin-solid": "^2.11.6"
   }
 }