Changes to Search Gifts

the response property items/items/variations/items/unlimited_quantity became nullable for the status 200

response property items/items/variations/items/feed_variations/color list-of-types was widened by adding types string to media type application/json of response 200

response property items/items/variations/items/feed_variations/size list-of-types was widened by adding types string to media type application/json of response 200