Fix: Leere Sidebar-Section (doppelter Strich) nach Netzwerk-Entfernung beseitigt

src/static/dashboard.html

@@ -95,9 +95,6 @@
             </div>
 
 
-            <div class="sidebar-section">
-                            </div>
-
             <div class="sidebar-section">
                 <h2 class="sidebar-section-title collapsible" onclick="App.toggleSidebarSection('archived-incidents')" role="button" tabindex="0" aria-expanded="false">
                     <span class="sidebar-chevron" id="chevron-archived-incidents" aria-hidden="true">&#9662;</span>