EZP-23704: Added breadcrumbs in admin part

Link: https://jira.ez.no/browse/EZP-23704

## Description
Breadcrumbs for the admin pages.

## Tests
Manual test

## TODO
- [x] Apply on all template
- [x] Refactor pjax_admin.html.twig ?

nitpick: trailing space before `{% endblock %}`