Bump vite in /app in the npm_and_yarn group across 1 directory

Bumps the npm_and_yarn group with 1 update in the /app directory: [vite](https://github.com/vitejs/vite/tree/HEAD/packages/vite).


Updates `vite` from 6.3.6 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
  dependency-group: npm_and_yarn
...

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

app/package.json

@@ -75,7 +75,7 @@
     "postcss-simple-vars": "^7.0.1",
     "sass": "^1.80.4",
     "typescript": "^5.8.2",
-    "vite": "^6.3.6",
+    "vite": "^6.4.1",
     "vite-plugin-compression2": "^1.3.0",
     "vitest": "^3.1.4"
   },