Fixed description of custom dashboards

prs.desktop/Dashboards/CustomDashboard.xaml.cs

@@ -26,6 +26,10 @@ public class CustomDashboardProperties : IDashboardProperties, IUserConfiguratio
 
 public class CustomDashboardElement : DFLayoutElement<CustomDashboardProperties>
 {
+    protected override string GetDescription()
+    {
+        return Properties.DashboardName;
+    }
 }
 
 /// <summary>