Pass thru data-testid for automated testing (cypress/playwright/...)

[gerwinbrunner]

Summary

it would be great if all data-... props to a component would be passed thru.

It works for Box, but does not for i.e. Page component.

This is a repost of:
#3056

Rationale

To do automated testing with i.e. cypress you would need in some cases to set the data-testid prop on specific elements.

This is not possible to do with just the id prop (multiple elements of the same kind)
or with plain xpath expressions.