added tailwind design classes, and installed tailwindcss properly.

frontend/vite.config.ts

@@ -1,7 +1,5 @@
-import { defineConfig } from 'vite'
-import react from '@vitejs/plugin-react'
-
-// https://vite.dev/config/
+import { defineConfig } from "vite";
+import tailwindcss from "@tailwindcss/vite";
 export default defineConfig({
-  plugins: [react()],
-})
+  plugins: [tailwindcss()],
+});