docs: fix AnalyticalTable Tree Table Story

Author: MarcusNotheis

packages/main/src/components/AnalyticalTable/AnalyticalTable.stories.mdx

@@ -295,7 +295,7 @@ This even works if you resize the browser window!
         subRowsKey={args.subRowsKey}
         selectedRowIds={args.selectedRowIds}
         selectionBehavior={args.selectionBehavior}
-        isTreeTable={args.isTreeTable}
+        isTreeTable
       />
     )}
   </Story>