Add WooCommerce _visibility and _regular_price metakeys in WPUF form

mmwd_update_frontend_woocommerce_fields

// Update price and visibility
function mmwd_update_frontend_woocommerce_fields( $post_id, $form_id, $form_settings, $form_vars ){
	
	// update _price depending on _sale_price or _regular_price
	$_price = ( $_POST['_sale_price'] ) ? esc_html( $_POST['_sale_price'] ) : esc_html( $_POST['_regular_price'] );
	update_post_meta( $post_id, '_price', $_price );
	
	// update _visibility
	update_post_meta( $post_id, '_visibility', 'visible' );
	
}
add_action( 'wpuf_add_post_after_insert', 'mmwd_update_frontend_woocommerce_fields' ) ;
add_action( 'wpuf_edit_post_after_update', 'mmwd_update_frontend_woocommerce_fields' ) ;