[site-reviews] round-up summary star rating

add_filter('site-reviews/defaults/star-rating', function ($values) {
    $fullRating = $values['max_rating'] - 0.3; // i.e. 4.7
    if ($values['rating'] >= $fullRating) {
        $values['num_full'] = $values['max_rating'];
        $values['num_half'] = 0;
        $values['num_empty'] = 0;
    }
    return $values;
});