Update plugin to work with October's new Response Trait

[Former user]

As per discussion here: https://github.com/octobercms/october/pull/4816

October has updated the way it handles Respsonse::() as per code line: https://github.com/octobercms/october/blob/193dac80bdee7e521d35ae1637272eadff9bbb49/modules/cms/classes/Controller.php#L265

Please can you update and test your wonderful plugin to keep it working with this code change.

Kind regards,

Ayumi.