as part of this change, refactor the ui tests so that they
use lower level backend apis instead of simulating http requests
(this allows us to mock replies as well)
Co-authored-by: Sven Sauleau <sven@cloudflare.com>
Co-authored-by: Dario Piotrowicz <dario@cloudflare.com>
Co-authored-by: André Cruz <acruz@cloudflare.com>
Co-authored-by: James Culveyhouse <jculveyhouse@cloudflare.com>
Co-authored-by: Pete Bacon Darwin <pete@bacondarwin.com>