lint: Fix rubocop offences.

Author: jnms-me

app/controllers/barcodes_controller.rb

@@ -87,6 +87,6 @@ def destroy
   private
 
   def barcode_params
-    params.require(:barcode).permit(:code)
+    params.expect(barcode: [:code])
   end
 end

app/controllers/orders_controller.rb

@@ -177,6 +177,6 @@ def overview
   private
 
   def order_params
-    params.require(:order).permit(order_items_attributes: %i[count price product_id])
+    params.expect(order: [order_items_attributes: %i[count price product_id]])
   end
 end

app/controllers/products_controller.rb

@@ -72,7 +72,7 @@ def update
   private
 
   def product_params
-    params.require(:product).permit(:name, :price, :avatar, :category, :stock, :calories, :deleted, :barcode,
-                                    barcodes_attributes: %i[id code _destroy])
+    params.expect(product: [:name, :price, :avatar, :category, :stock, :calories, :deleted, :barcode,
+                            { barcodes_attributes: %i[id code _destroy] }])
   end
 end