refactor: remove forum and topic feature chains

src/Settings/UserRuntime.php

@@ -31,7 +31,7 @@ class UserRuntime {
             return $clean;
         };
 
-        // Zibll author_main_tab_opt defaults: post, favorite, comment, plate, forum, follow.
+        // Public profile tabs supported by this theme.
         $normalized_tabs = $parse_csv('user_home_tabs', 'posts,favorites,comments,follow');
         if (empty($normalized_tabs)) {
             $normalized_tabs = ['posts', 'favorites', 'comments', 'follow'];