Changes to List threads in an inbox

added the new 10011 enum value to the errors/items/code response property for the response status 401

added the new 10011 enum value to the errors/items/code response property for the response status 404

added the new 10011 enum value to the errors/items/code response property for the response status 422

added the new 10011 enum value to the errors/items/code response property for the response status 503

added the new domain_graduation_limit_exceeded enum value to the errors/items/code response property for the response status 401

added the new domain_graduation_limit_exceeded enum value to the errors/items/code response property for the response status 404

added the new domain_graduation_limit_exceeded enum value to the errors/items/code response property for the response status 422

added the new domain_graduation_limit_exceeded enum value to the errors/items/code response property for the response status 503

added the new optional query request parameter filter[label]

added the required property data/items/labels to the response with the 200 status

endpoint added