GitAuto: Add a new icon on the top right to switch this entire website between dark mode and light mode

src/components/ThemeToggle.js

@@ -0,0 +1,28 @@
+import React, { useState, useEffect } from 'react';
+
+const ThemeToggle = () => {
+  const [theme, setTheme] = useState('light');
+
+  useEffect(() => {
+    const savedTheme = localStorage.getItem('theme');
+    if (savedTheme) {
+      setTheme(savedTheme);
+      document.documentElement.setAttribute('data-theme', savedTheme);
+    }
+  }, []);
+
+  const toggleTheme = () => {
+    const newTheme = theme === 'light' ? 'dark' : 'light';
+    setTheme(newTheme);
+    document.documentElement.setAttribute('data-theme', newTheme);
+    localStorage.setItem('theme', newTheme);
+  };
+
+  return (
+    <button onClick={toggleTheme} aria-label="Toggle theme">
+      {theme === 'light' ? '🌙' : '☀️'}
+    </button>
+  );
+};
+
+export default ThemeToggle;