Set page.next for component version start page
If the component version start page is not found in the navigation tree (meaning it's the implicit root entry), set page.next to the first entry in the navigation that references an internal URL (i.e., urlType: 'internal'
). That way, the reader can use the pager on the start page to advance to the next page in the component version. Currently, this navigation aid is not available on the start page.