Page Break block: Possible to add stylization?

### What

Page Break block displays page number as pagination system. Is it possible to make it stylized and make it displaying arrow or other style?

### Why

Mostly, on design-wise. Some folks might dislike the page number. For example, this one:


Some folks might okay with the numbers: 1, 2, 3, until the end of the page.

Some, however, might prefer arrows, or `...` (for example: 1, 2, 3, ..., 25)

### How

I really don't know 😅 I'm not sure if this is doable or not. If it's not possible, that's okay, though. If it's possible, that would be really cool. Thank you!

Start by locating the Page Break block in the repository; the issue names no file, test, or entry point. Clarify which alternate pagination styles are required, then define the expected styling behavior and verification criteria before implementation.

Written by the indexing model from the issue text.