1function PreferencesManager() {
2  const [settings, setSettings] = useState({
3    notifications: true,
4    theme: 'light'
5  });
6  
7  const toggleNotifications = () => {
8    setSettings({
9      notifications: !settings.notifications
10    });
11  };
12
13  return (
14    <div>
15      <h2>User Preferences</h2>
16      <p>Theme: {settings.theme}</p>
17      <p>Notifications: {settings.notifications ? 'On' : 'Off'}</p>
18      <button onClick={toggleNotifications}>Toggle Notifications</button>
19    </div>
20  );
21}