fix(ui): apply user-requested fixes for Meme, TOC, ROI Calculator, and Gantt

apps/web/src/components/TableOfContents.tsx

@@ -75,12 +75,12 @@ export const TableOfContents: React.FC<TableOfContentsProps> = ({ items, classNa
     };
 
     return (
-        <div className={`not-prose my-12 p-8 bg-slate-50 border border-slate-200 rounded-2xl ${className}`}>
+        <div className={`not-prose my-12 border-l-2 border-slate-200 pl-6 ${className}`}>
             <script
                 type="application/ld+json"
                 dangerouslySetInnerHTML={{ __html: JSON.stringify(jsonLd) }}
             />
-            <p className="text-xs font-bold text-slate-400 uppercase tracking-widest mb-6 border-b border-slate-200 pb-2">
+            <p className="text-xs font-bold text-slate-400 uppercase tracking-widest mb-6">
                 Inhaltsverzeichnis
             </p>
             <nav>