The list of automatic facet breadcrumbs.
The list of category facet breadcrumbs.
The list of date facet breadcrumbs.
The list of specific facet breadcrumbs.
Returns true if there are any available breadcrumbs (that is, if there are any active facet values), and false if not.
The list of numeric facet breadcrumbs.
The list of static filter breadcrumbs.
A scoped and simplified part of the headless state that's relevant to the
BreadcrumbManagercontroller.