Fix: Discount label on email for free product displays key value

Fix: Discount label on email for free product displays key value

add_filter('woocommerce_order_items_meta_get_formatted', function ($formatted_meta, $order_item_meta){
    if(!empty($formatted_meta)){
        foreach ($formatted_meta as $key =>  $formatted_meta_data){
            if($formatted_meta_data['key'] == 'wdr_free_product' || $formatted_meta_data['label'] == 'wdr_free_product'){
                if($formatted_meta_data['label'] == 'wdr_free_product'){
                    $formatted_meta[$key]['label'] = __('Discount', 'woo-discount-rules-pro');
                } else {
                    $formatted_meta[$key]['label'] = __($formatted_meta[$key]['label'], 'woo-discount-rules-pro');
                }
                $formatted_meta[$key]['value'] = __($formatted_meta[$key]['value'], 'woo-discount-rules-pro');
            }
        }
    }

    return $formatted_meta;
}, 10, 2);