better detection of meal voucher payment lines

lacagette_addons/pos_meal_voucher/static/src/js/models.js

@@ -42,13 +42,13 @@ odoo.define("pos_meal_voucher.models", function (require) {
             
             var paymentlines = [];
 
-            // Add fork&knife symbol on pos ticket for product with meal voucher allowed & when meal voucher is used
+            // Add fork&knife symbol on pos ticket for products with meal voucher allowed & when meal voucher is used
             var meal_voucher_used = false;
             this.paymentlines.each(function(paymentline){
                 var line = paymentline.export_for_printing();
                 paymentlines.push(line);
                 
-                if (line.journal.toLowerCase().includes("dej") || line.journal.toLowerCase().includes("déj")) {
+                if (paymentline.is_meal_voucher()) {
                     meal_voucher_used = true;
                 }
             });

lacagette_addons/pos_meal_voucher/static/src/js/screens.js

@@ -168,8 +168,7 @@ odoo.define("pos_meal_voucher.screens", function (require) {
             // Add fork&knife symbol on pos ticket for product with meal voucher allowed & when meal voucher is used
             var meal_voucher_used = false;
             for (var i = 0; i < paymentlines.length; i++) {
-                var line = paymentlines[i].export_for_printing();
-                if (line.journal.toLowerCase().includes("dej") || line.journal.toLowerCase().includes("déj")) {
+                if (paymentlines[i].is_meal_voucher()) {
                     meal_voucher_used = true;
                     break;
                 }