Implement dynamic page titles

src/pages/Privacy.tsx

@@ -1,6 +1,8 @@
 import { Header } from '@/components/layout/Header';
+import { useDocumentTitle } from '@/hooks/useDocumentTitle';
 
 export default function Privacy() {
+  useDocumentTitle('Privacy Policy');
   return (
     <div className="min-h-screen bg-background">
       <Header />