[jena5] UI e2e tests have a 404 to `/` which appears to stop tests

[kinow]

Change

As per title, running yarn test:e2e isn't working properly. The tests should pass as manual tests passed fine. But there are requests to / returning 404 in the fake backend. I think some configuration settings in Cypress or json-server changed and are causing this issue.

Are you interested in contributing a pull request for this task?

Yes