#3487802 Added a content_top section to the navigation for programmatic additions

kind: function_glob
to:
  pattern: '*_navigation_content_top'
kind: function_glob
to:
  pattern: '*_navigation_content_top_alter'
kind: attribute_predicate
to:
  arg: 0
  string_in:
    - navigation_content_top
attribute_fqn: \Drupal\Core\Hook\Attribute\Hook
kind: attribute_predicate
to:
  arg: 0
  string_in:
    - navigation_content_top_alter
attribute_fqn: \Drupal\Core\Hook\Attribute\Hook