[site-reviews] make the submission form start with 5-stars

/**
 * Makes the star-rating control in the submission form start with 5-stars
 * Site Reviews v3.0 only!
 * Paste this in your active theme's functions.php file.
 * @param array $fields
 * @return array
 */
add_filter( 'site-reviews/config/forms/submission-form', function( $fields ) {
    if( isset( $fields['rating'] )) {
        $fields['rating']['value'] = 5;
    }
    return $fields;
});