Update tailwind.config.js

Author: Srushtee1706

tailwind.config.js

@@ -1,6 +1,7 @@
 /** @type {import('tailwindcss').Config} */
 export default {
   content: ['./index.html', './src/**/*.{js,ts,jsx,tsx}'],
+  darkMode: 'class', // Add this line
   theme: {
     extend: {},
   },