master
Renamed the directory.
Changes. 1. Restored the payment form. 2. Changed the size of the progressbar.
[Progressbar]: Added visualization of the sale_transaction execution process to the progressbar. The code uses signals and streams. The logic of the functions has been changed: run_terminal_command, terminal_oplata, terminal_return, terminal_canceling, handle_document_errors, check_open. Added the functions process_terminal_transaction and universal_terminal_operation. Now errors in the functions are not displayed in a pop-up dialog box.