Update Vite

[Mathiyarasy]

Fixes : https://github.com/github/codespaces-react/security/dependabot/54

Update devdependencies:

• @vitejs/plugin-react 6.0.1
• vite 8.0.12
• vitest 4.1.6

[Copilot]

Pull request overview

Updates Vite-related devDependencies to address a Dependabot security alert by bumping @vitejs/plugin-react, vite, and vitest to their latest major versions, with corresponding package-lock.json regeneration.

Changes:

• Bump @vitejs/plugin-react from ^4.7.0 to ^6.0.1
• Bump vite from ^6.3.6 to ^8.0.12
• Bump vitest from ^3.0.7 to ^4.1.6

Show a summary per file

File	Description
package.json	Updates three devDependency version ranges to new major versions
package-lock.json	Regenerated lockfile reflecting new dependency tree (rolldown replacing rollup/esbuild, lightningcss, etc.)

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• Files reviewed: 1/2 changed files
• Comments generated: 0