Possible bug: redirect missing site URL in multisite setup

[bobmulder]

Hi! Thanks for the great package.

In a multisite Statamic setup, redirects in vendor/rias/statamic-redirect/src/Http/Middleware/HandleNotFound.php seem to lose the site prefix.

Example:

Requested: /nl/old-page
Expected : /nl/new-page
Actual: /new-page

This happens because $redirect->destination() returns only a path, so the site URL isn’t prepended.

✅ My fix

I changed:

$destination = $redirect->destination();

to:

$destination = $site->url() . $redirect->destination();

and did the same in cacheNewRedirect().

Now redirects resolve correctly per site.

💬 Questions

1. Is this intended behavior or a bug?
2. Does this seem like the right fix?
3. Would you be open to a PR?

Thanks!