fix(Pagination): Allow usage of Pagination component with Next.js

[DavidFrancois]

ATM when on the first or last page of the pagination component, a Link component is generated with no href attribute for the first / last page and previous / next page elements of the pagination.

The issue seem to have been running for almost a year now #170

Issue : Since NextJS can't handle Link without an href attribute, the whole page crashes if we're on the first or last page of the pagination component.

Steps to reproduce : Clone react-dsfr, use a Pagination component in test/integration/next-appdir/ui/ClientComponent.tsx.

Set defaultPage attribue to either 1 or the same as count count attribute, and count > 1.
Run and try to access the page.

example :

<Pagination
       getPageLinkProps={(page) => ({ href: `?page=${page}` })}
       count={10}
       defaultPage={1}>
</Pagination>

Solution :
I tried to solve this in the most simple and straight forward way :
If we're on either the first or last page of the Pagination component, then we use a <a> HTML element instead of <Link> for those specific action links.

Since the link is not clickable anyway in such case, this should not cause any issue or regression.

[martinratinaud]

Need this ASAP :-) Thanks a lot

[garronej]

Thank you for taking the time to submit a PR!