Changes to Get the status of a site-level fix

added the optional property code to the response with the 400 status

added the optional property message to the response with the 400 status

added the optional property reference to the response with the 400 status

added the optional property success to the response with the 400 status

api tag PageSpeed added

added the new optional query request parameter slug

added the new optional query request parameter teamId

added the media type application/json for the response with the status 200

added the non-success response with the status 400

endpoint added