feat: initialize React client with Vite setup

- Added package.json with dependencies for React, Vite, TypeScript, and ESLint.
- Included Vite logo SVG and React logo SVG in the public and assets directories respectively.
- Created main application component (App.tsx) with basic structure and state management.
- Added global styles in index.css and component-specific styles in App.css.
- Configured TypeScript with tsconfig files for app and node environments.
- Set up Vite configuration for development server with specified host and port.

client/src/vite-env.d.ts

@@ -0,0 +1 @@
+/// <reference types="vite/client" />