swap notebook toolbar and editor toolbar.

src/vs/workbench/api/common/menusExtensionPoint.ts

@@ -170,6 +170,12 @@ const apiMenus: IAPIMenu[] = [
 		description: localize('comment.actions', "The contributed comment context menu, rendered as buttons below the comment editor"),
 		supportsSubmenus: false
 	},
+	{
+		key: 'notebook/toolbar',
+		id: MenuId.NotebookToolbar,
+		description: localize('notebook.toolbar', "The contributed notebook toolbar menu"),
+		proposed: true
+	},
 	{
 		key: 'notebook/cell/title',
 		id: MenuId.NotebookCellTitle,