Fix hide reception cart

- add property user_cart_on
- add property product_sale_default_focus
- add property ticket_create-price_editable
- add discount product/ticket enabled

frontend/controllers/ProductController.php

@@ -95,7 +95,7 @@ class ProductController extends Controller {
 		
 		$accounts = Account::read ();
 		
-		$discounts = Discount::read ();
+		$discounts = Discount::readProductDiscounts();
 		
 		$user = User::findOne ( Yii::$app->user->id );