fix: update vitejs/plugin-react to prevent peer dependency warning

[cmgriffing]

I recently created a new Tauri project using React and TS. After installing with pnpm, I encountered this warning:

 WARN  Issues with peer dependencies found
.
└─┬ @vitejs/plugin-react 4.0.3
  └── ✕ unmet peer vite@^4.2.0: found 5.0.0

@vitejs/plugin-react 4.0.3 has a dependency on vite 4.x. Updating to 4.2.1 of the plugin fixes this warning.

[amrbashir]

Thank you