[site-reviews] add author URL links to {assigned_users} tag

add_filter('site-reviews/review/value/assigned_users', function ($value, $tag) {
    $users = [];
    foreach ($tag->review->assignedUsers() as $user) {
        $url = get_author_posts_url($user->ID); // change this part if using custom User URLs
        $users[] = sprintf('<a href="%s">%s</a>', $url, $user->display_name);
    }
    $and = __('and', 'site-reviews');
    $values[] = implode(" {$and} ", array_splice($users, -2));
    return implode(', ', $values);
}, 10, 2);