Show the possible duplicate modal on invoice edit

Purpose: Show the possible duplicate modal at point of invoice review/approval (in addition to at point of invoice creation). Since EDIFACT invoice import will create the invoice without user intervention, in the case of a possible duplicate, the user needs an opportunity to react to that modal at a later stage in the invoicing process

User story statement(s):

As a librarian that imports EDIFACT invoices
I want FOLIO to alert me to potential duplicate invoices
So that I can ensure I did not import the same invoice twice

Duplicate matching criteria:

• These three details must be identical: Vendor, invoice date and vendor invoice number (This logic is already implemented as a check when the user is saving a new invoice)

Scenarios:

1. Scenario:
   • Given user has created invoices or imported invoices via EDI
   • When clicking Save and close in edit form for an invoice that is found to be a potential duplicate
   • Then user is intercepted by Save invoice modal
   • AND duplicate invoice table is displayed in it, showing the possible duplicate(s)
2. Scenario:
   • Given user has clicked Save and close in edit form for invoice
   • When Duplicate invoice modal is displayed
   • Then the table that shows possible duplicates includes the following columns:
     • Vendor invoice number
     • Invoice date
     • Vendor name
     • Status
     • Amount