Add native scrolling to new editor tree views

new_editor/app/Features/Hierarchy/HierarchyPanel.cpp

@@ -569,7 +569,8 @@ void HierarchyPanel::ProcessDragAndFrameEvents(
             bounds,
             m_treeItems,
             m_expansion,
-            ResolveUIEditorTreeViewMetrics());
+            ResolveUIEditorTreeViewMetrics(),
+            m_treeInteractionState.verticalOffset);
         EmitReparentEvent(
             dragResult.droppedToRoot ? EventKind::MovedToRoot : EventKind::Reparented,
             dragResult.draggedItemId,
@@ -622,7 +623,8 @@ void HierarchyPanel::Update(
             panelState->bounds,
             m_treeItems,
             m_expansion,
-            treeMetrics);
+            treeMetrics,
+            m_treeInteractionState.verticalOffset);
 
     if (m_renameState.active || !m_pendingRenameItemId.empty()) {
         m_treeFrame.layout = layout;