Config Pages 4.0.1

A bug fix release. No API changes, no change to the supported core versions.
Ships a database update, so run update.php after deploying.

- Deleting a config page type no longer leaves its permissions behind in roles.
  The permissions now declare the type as a config dependency, the way core
  does for its own bundles. Issue #3454702.
- The config_pages.type_add route uses _entity_create_access, so
  hook_entity_create_access() is honoured. It was bypassed by a plain
  permission check before. Issue #3584287.
- The context fieldset is titled with the translatable plugin label instead of
  the raw plugin id. Issue #3470474.
- The config page edit permission no longer grants creating a config page type
  through createAccess(). The route already required the administer permission,
  so this was not reachable through the user interface.

config_pages_update_10001() revokes config page permissions whose type was
deleted before this release.