build(deps-dev): bump vite and @tailwindcss/vite in /frontend

Bumps [vite](https://github.com/vitejs/vite/tree/HEAD/packages/vite) and [@tailwindcss/vite](https://github.com/tailwindlabs/tailwindcss/tree/HEAD/packages/@tailwindcss-vite). These dependencies needed to be updated together.

Updates `vite` from 7.3.2 to 8.1.0
- [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@8.1.0/packages/vite)

Updates `@tailwindcss/vite` from 4.1.14 to 4.3.1
- [Release notes](https://github.com/tailwindlabs/tailwindcss/releases)
- [Changelog](https://github.com/tailwindlabs/tailwindcss/blob/main/CHANGELOG.md)
- [Commits](https://github.com/tailwindlabs/tailwindcss/commits/v4.3.1/packages/@tailwindcss-vite)

---
updated-dependencies:
- dependency-name: vite
  dependency-version: 8.1.0
  dependency-type: direct:development
- dependency-name: "@tailwindcss/vite"
  dependency-version: 4.3.1
  dependency-type: direct:development
...

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Author: dependabot[bot]