Change header text size in sidebar bookmark

apps/app/src/client/components/Sidebar/Bookmarks.tsx

@@ -14,7 +14,7 @@ export const Bookmarks = () : JSX.Element => {
   return (
     <div className="px-3">
       <div className="grw-sidebar-content-header">
-        <h4 className="mb-0 py-4">{t('Bookmarks')}</h4>
+        <h1 className="fs-6 fw-bold mb-0 py-4">{t('Bookmarks')}</h1>
       </div>
       {isGuestUser ? (
         <h4 className="fs-6">