title	issue
Documents receive the same document number	NEXT-12947

Core

Added checkDocumentNumberAlreadyExits in src/Core/Checkout/Document/DocumentService.php method to check document number already exists or not.
Added DocumentNumberAlreadyExistsException exception to show the message for document number already exists

Administration

Added DocumentEvents and $listener to support to show the status of fail or finished of create document
Added notification in sw-order-document-card to show the messages from listener