Edit sequence of invoice lines

Purpose: 

1. Creating invoices manually is a slow process that requires copying and pasting ID numbers (POL number) and navigating between multiple apps

User story statement(s):

As an ordering librarian
I want to have the ability to easily create invoices from Orders

Scenarios:

1.   Change sequence of invoice lines
   • Given user is viewing invoice form
   • When clicks save and close and order has more than one POL - user is taken to Edit sequence of invoice line screen 
   • Then can change the sequence of invoice lines with drag and drop
2. Create invoice lines in specified sequence {}
   • Give user is creating invoice from order with >1 POL
   • When sequence of invoice lines is displayed and user clicks Save and close
   • Then Invoice lines are added to the invoice in the order in which they appear on the sequence page starting from the invoice line at the top of the page

For more detail see - https://miro.com/app/board/uXjVOxNlOs0=/