scrollDistance=screen can result in cut-off slides

### Is there an existing issue for this?

- [x] I have searched the existing issues

### Code of Conduct

- [x] I agree to follow this project's Code of Conduct

### Feature Request

When using `scrollDistance="screen"`, the carousel scrolls by a fixed amount equal to the width of the carousel "viewport". I believe this differs in one key way from previous versions of nuka-carousel with `slidesToScroll="auto"`, in that this scroll distance no longer "stops" to have slides left-aligned. This can lead to some slides always being cut-off.

You can reproduce this on the demo page, a browser viewport width of 600px will illustrate it. In the recording below, slide 2 can never be seen in full (except during animation).

https://github.com/user-attachments/assets/6a4f0c35-2dcd-42e6-b36c-66a742c9a5b6

Would it be reasonable to support a new `scrollDistance` (e.g. `"page"`), that would replicate this older behavior? Such that if a slide is partially cut-off at the end of one page, it becomes the starting slide of the next page (fully visible)?