fix unexpected behaviour for virtual scroll

src/lib/listing/table-content/table-content.component.html

@@ -1,4 +1,4 @@
-<div [iqserHelpMode]="helpModeKey">
+<div [iqserHelpMode]="helpModeKey" class="display-contents">
     <cdk-virtual-scroll-viewport
         [class.no-data]="listingComponent.noContent$ | async"
         [itemSize]="itemSize"

src/lib/listing/table-content/table-content.component.scss

@@ -69,3 +69,7 @@
         }
     }
 }
+
+.display-contents {
+    display: contents;
+}