feat: Payment system with voucher cards.

feat: Design with inversion dependency injection architecture.
feat: Prettier http middleware.
feat: Re-write items categories with preferred accounts.

server/src/exceptions/index.ts

@@ -0,0 +1,5 @@
+import NotAllowedChangeSubscriptionPlan from './NotAllowedChangeSubscriptionPlan';
+
+export {
+  NotAllowedChangeSubscriptionPlan,
+};