This makes some sense as all browsers that Cypress supports are modern browsers.
🤔 But on the other hand, unlike webpack, vite dev and vite build outputs differ greatly. Unit tests can't cover these differences.
So I would prefer to use E2E tests to make sure the build works correctly. Speed isn't much of a concern here.

Superseded by #183
We now have a test:e2e:dev command to use the dev server and run the tests interactively.