screen size agnostic grid tests

[eps1lon]

For mui#24395 (comment)

Calling render multiple times is not supported currently.

For technical reasons as well as because it leads to generic naming of destructured methods getByTestId followed by defaultThemeGetByTestId. This particular instance is more of an argument for using screen but the argument would apply for other methods (e.g. unmount or debug).

I'll follow-up with a warning if we spot this pattern and a recommendation to use rerender. This should cover all use cases.