fix: consistent indentation in index.html picker section

index.html

@@ -47,7 +47,7 @@
           <button class="action-btn" id="picker-schema-btn">Zu Schema hinzufügen</button>
         </div>
       </div>
-</section>
+    </section>
     <section id="tab-eingabe" class="tab-content">
   <h2>Farbe eingeben</h2>
   <div id="eingabe-preview" class="color-preview" style="background:#3a8fc1"></div>