Namespace navigation

References

breadcrumb → NavigationBreadcrumb
drawer → NavigationDrawer
header → NavigationHeader
item → NavigationItem
NavigationBreadcrumb → NavigationBreadcrumb
NavigationDrawer → NavigationDrawer
NavigationHeader → NavigationHeader
NavigationItem → NavigationItem
NavigationSlider → NavigationSlider
NavigationSticky → NavigationSticky
slider → NavigationSlider
sticky → NavigationSticky