Pages of type Zend\Navigation\Page\Uri can be used to link to pages on other domains or sites, or to implement
custom logic for the page. URI pages are simple; in addition to the common page options, a URI page takes only
one option — uri. The uri will be returned when calling $page->getHref(), and may be a String or
Zend\Navigation\Page\Uri will not try to determine whether it should be active when calling
$page->isActive(). It merely returns what currently is set, so to make a URI page active you have to
manually call $page->setActive() or specifying active as a page option when constructing.