[site-reviews] Hide the title if empty

add_filter('site-reviews/review/wrap/title', function ($value, $rawValue, $tag) {
    if (empty($tag->review->title)) {
        return '';
    }
    return $value;
}, 10, 3);

// OR THIS

add_filter('site-reviews/review/value/title', function ($value) {
    if ($value === __('No Title', 'site-reviews')) {
        $value = '';
    }
    return $value;
});