[site-reviews] replace empty title with assigned "post name - author name"

add_filter('site-reviews/review/value/title', function ($value, $tag) {
    if (!empty($tag->review->title)) {
        return $value;
    }
    $post = $tag->review->assignedPosts()[0] ?? null;
    if (empty($post)) {
        return '';
    }
    $parts = array_filter([
        get_the_title($post),
        get_the_author_meta('display_name', $post->post_author),
    ]);
    $title = implode(' - ', $parts);
    return trim($title);
}, 10, 2);