Starting adding help-file for user made CSS templates

templates/dashboard.html

@@ -45,7 +45,10 @@
 </div>
 
 <div class="card">
-    <h2>Custom Themes</h2>
+    <h2>
+        Custom Themes 
+        <a href="/help/css" target="_blank" class="help-link" title="Open CSS guide in new window">(?)</a>
+    </h2>
     <p>Create your own themes with CSS. These are private to your account.</p>
     
     <div id="custom-themes-list">
@@ -72,6 +75,12 @@
 </div>
 
 <style>
+    .help-link {
+        font-size: 0.9rem;
+        vertical-align: middle;
+        text-decoration: none;
+        color: var(--primary-color);
+    }
     .url-box {
         display: flex;
         gap: 10px;