Bump vite from 5.4.18 to 6.3.5 in /app/frontend

Bumps [vite](https://github.com/vitejs/vite/tree/HEAD/packages/vite) from 5.4.18 to 6.3.5.
- [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/v6.3.5/packages/vite)

---
updated-dependencies:
- dependency-name: vite
  dependency-version: 6.3.5
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]