improve back btn wording on start method of PaymentScreenWidget screen in…

improve back btn wording on start method of PaymentScreenWidget screen in backend.js of lacagette_custom_pos module

lacagette_addons/lacagette_custom_pos/static/src/js/backend.js

@@ -150,6 +150,8 @@ odoo.define('lacagette_custom_pos.DB', function(require) {
                 self.gui.show_screen("products");
               }
             });
+            $(".payment-screen .screen-content .top-content .back").replaceWith("<span class='button back'><i class='fa fa-angle-double-left'></i> Modifier le panier</span>");
+
       }
     })