fix: Chevron zwischen Hero und Problem entfernt (beide Navy, nahtlos)

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

vorschau/index.html

@@ -101,9 +101,6 @@
         </div>
     </section>
 
-    <!-- Chevron: Hero -> Demos -->
-    <div class="divider divider-chevron-dark">
-        <svg viewBox="0 0 1440 80" preserveAspectRatio="none"><path d="M0,0 L720,80 L1440,0 L1440,0 L0,0 Z" fill="#0A1832"/></svg>
     </div>
 
     <!-- Problem Statement (dark) -->