Use aria-current="page" attribute for <Link> active state

[morellodev]

At the moment, the library is adding a custom data-status attribute to the anchor tag to indicate that it is active. This enable users to target active links for styling purposes, but the accessibility tree is completely unaware of that information.

To address this, we could set instead the aria-current="page" attribute, which is the recommended way to handle active links in an accessible way.

If setting "page" as the value of the attribute is out of context for a specific use (eg. for particular nested routes), the user can always override it with the proper value.