fix: Alte Chevron-Reste und 'n'-Artefakt entfernt

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

vorschau/index.html

@@ -101,12 +101,6 @@
         </div>
     </section>
 
-    </div>
-n    <!-- Chevron: Hero -> Problem -->
-    <div class="divider" style="background:var(--navy);line-height:0">
-        <svg viewBox="0 0 1440 60" preserveAspectRatio="none"><path d="M0,0 L720,60 L1440,0 Z" fill="#0A1832" /><rect y="0" width="1440" height="1" fill="#1a2d4a" opacity="0.3"/></svg>
-    </div>
-
     <!-- Problem Statement (dark) -->
     <section class="section section-dark" id="problem">
         <div class="container">