Implement Withdraw Endpoint for Issuance Offers

[nanderstabel]

Description

While the addition of the Withdrawn status to the Status enum is covered in another issue (#119), this task focuses on adding the API endpoint to allow users to withdraw an offer.

Add a /v0/offers/<offer_id>/withdraw endpoint which can be called to withdraw a Credential Offer.

• Create a new command to handle the withdrawal of an offer, triggering the appropriate event that updates the offer's status to Withdrawn.

• Update the OfferView to exclude withdrawn offers from the active offers list presented to users.

Motivation

Users will no longer see the withdrawn offers in their active list, reducing confusion.

Resources

n/a

To-do List

• Add Offer withdraw endpoint

[M-Adam-Hus]

Implement Withdraw Endpoint for Issuance Offers