Changes to Get social accounts

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

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

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

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

added the new optional query request parameter external_ref

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