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.

backend/server.js

@@ -1,7 +1,7 @@
 //statics
 import express from "express";
 const app = express();
-const port = 4000;
+const port = 5002;
 
 //view engine ejs
 app.set("view engine", "ejs");