feat: add /faq page and link from request form

templates/request.html

@@ -122,6 +122,7 @@
   <div class="card">
     <h1><span class="sparkle">🎵</span> Get Your Custom Theme Song <span class="sparkle">🎶</span></h1>
     <p class="subtitle">Tell us about yourself and we'll craft a one-of-a-kind song just for you.</p>
+    <p class="subtitle"><a href="{{ url_for('faq') }}" target="_blank" rel="noopener noreferrer">Questions? Read our FAQ →</a></p>
 
     {% with messages = get_flashed_messages(with_categories=true) %}
     {% if messages %}