Function flattenItems

packages/ui-components/src/Containers/Sidebar/index.tsx:15–21

(
  items: Array<SidebarItemType>
)

};

const flattenItems = (
  items: Array<SidebarItemType>
): Array<SidebarItemType> => {
  return items.flatMap((item: SidebarItemType) =>
    item.items && item.items.length ? flattenItems(item.items) : [item]
  );
};

type SidebarProps = {
  groups: Array<