fix: Quellenübersicht-Stats in eigene Zeile unter den Header verschoben

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

src/static/css/style.css

@@ -3613,12 +3613,16 @@ a:hover {
     flex-shrink: 0;
 }
 
-/* === Quellenübersicht Header-Stats (zugeklappter Zustand) === */
+/* === Quellenübersicht Subheader mit Stats === */
+.source-overview-subheader {
+    padding: 0 var(--sp-lg) var(--sp-sm);
+    cursor: pointer;
+}
+
 .source-overview-header-stats {
     font-size: 12px;
     color: var(--text-tertiary);
     font-weight: 400;
-    margin-left: 4px;
 }
 
 .source-overview-chevron.open {

src/static/dashboard.html

@@ -239,9 +239,12 @@
                             <div class="card source-overview-card">
                                 <div class="card-header source-overview-header-toggle" onclick="App.toggleSourceOverview()" role="button" tabindex="0" aria-expanded="false">
                                     <span class="source-overview-chevron" id="source-overview-chevron" title="Aufklappen" aria-hidden="true">&#9656;</span>
-                                    <div class="card-title clickable">Quellenübersicht</div><span class="source-overview-header-stats" id="source-overview-header-stats"></span>
+                                    <div class="card-title clickable">Quellenübersicht</div>
                                     <button class="btn btn-secondary btn-small source-detail-btn" onclick="event.stopPropagation(); openContentModal('Quellenübersicht', 'source-overview-content')">Detailansicht</button>
                                 </div>
+                                <div class="source-overview-subheader" onclick="App.toggleSourceOverview()" role="button">
+                                    <span class="source-overview-header-stats" id="source-overview-header-stats"></span>
+                                </div>
                                 <div id="source-overview-content" style="display:none;"></div>
                             </div>
                         </div>