Edit payment - Githubissues

What's included in this pr + description

This pr introduces editing payment!

If you are an author, you can go to the proposal page to edit a payment as long as the proposal hasn't been fully approved. Once the payment is edited, your signatures will reset and the proposal history tab will update with a new version displaying the changes of the before and after history.

You can edit:

payment terms
payment amount
payment token
payment network

You can't edit:

the recipient address (but you will soon)
the sender address

The recipient address is supported in the code, but is hidden visually with css

Motivation & Context

People want to be able to edit their payments in order to come to agree on the terms of the proposal

Steps to test

Create a proposal with payment:

edit to different payments trying out all the different payment terms permutations:

advanced payment -> pay on completion

pay on completion -> pay on approval 

pay on approval -> advanced payment etc, etc.

Test editing payment by creating a proposal to an RFP.

Test import token

Test actually paying the payment terms

Screenshots and/or loom video

Outstanding issues

Need to bring back the network selection dropdown on the proposal creation form to be in parity with the editing form

Relevant docs

N/A

0xStation / proposer