Changes to Detect language

the response property response/errors/items/details became nullable for the status 400

the response property response/errors/items/details became nullable for the status 401

the response property response/errors/items/details became nullable for the status 429

the response property response/errors/items/details became nullable for the status 500

the response property response/errors/items/key became nullable for the status 400

the response property response/errors/items/key became nullable for the status 401

the response property response/errors/items/key became nullable for the status 429

the response property response/errors/items/key became nullable for the status 500

the response/allOf[subschema #2]/data/items/items/languages/items/localeIds/items response's property pattern ^[a-z]{2}(-[A-Z]{2})?$ was added for the status 200

endpoint added