Order book

The application is aimed mainly to persons who are engaged in the provision of any services.
The main advantages of this application:
  - Sort order at the specified time (those orders that are closer in time are located above)
  - All orders are automatically stored in the archive
  - Cancelled orders can be removed
  - When you click on the customer number, its number is automatically dialed in the phone
  - Past orders are automatically deleted, but retained in the archive