Add invoice functionality for orders with Stripe integration

app/controllers/orders_controller.rb

@@ -106,8 +106,6 @@ class OrdersController < ApplicationController
   end
 
   # Display order summary
-  #
-  #
   def show
     @tickets = @order.tickets.includes(:ticket_type)
   end
@@ -165,7 +163,7 @@ class OrdersController < ApplicationController
     end
 
     @tickets = @order.tickets.includes(:ticket_type)
-    
+
     # Get the Stripe invoice if it exists
     begin
       @stripe_invoice_id = @order.create_stripe_invoice!

test/controllers/orders_controller_invoice_test.rb

@@ -20,4 +20,4 @@ class OrdersControllerInvoiceTest < ActionDispatch::IntegrationTest
     assert_redirected_to order_url(draft_order)
     assert_equal "La facture n'est disponible qu'après le paiement de la commande", flash[:alert]
   end
-end
+end