Move registry-related GraphQL types to container_registry folder

In this merge request, we are moving container registry-related types and enums inside the app/graphql/types/container_registry/ folder in app/graphql/types/:

This effort helps organize container registry enums and types and also inline with the bounded context initiative (https://docs.gitlab.com/ee/development/software_design.html#bounded-contexts).

The following files were moved:

• container_repository_cleanup_status_enum.rb
• container_repository_details_type.rb
• container_repository_referrer_type.rb
• container_repository_sort_enum.rb
• container_repository_status_enum.rb
• container_repository_tag_type.rb
• container_repository_tags_sort_enum.rb
• container_repository_type.rb

Note: Some of the files that were moved are not detected by git as a rename but rather as a deletion of a file and a creation of a new file, this contributes to the 42 files changed.