Slack - Reimbursement Requests Should Have Reaction Messages

Description

Right now Change Requests get a check mark/ x emoji when it's approved or denied. We want to implement a similar functionality for reimbursement requests. Each status for a reimbursement request should have an emoji (kind of up to you to decide what emojis it'll probably get ironed out in the review process, but everything including to and past submitted to sabo status should have an emoji:
SABO_SUBMITTED
ADVISOR_APPROVED
REIMBURSED
DENIED

You'll need to make a migration to add a Message_Info[] array to reimbursement requests so that you can store the original message id when a reimbursement request is created.

Acceptance Criteria

• A Prisma migration has been made to add a Message_Info array to the reimbursement_request model
• The create reimbursement request endpoint has been modified to add the newly created message ids to that array whenever the slack messages for that endpoint are sent out
• All the endpoints for editing reimbursement request statuses should be updated to react to the original message with a different emoji for each status

Proposed Solution

Look at the way this code works for change requests, it should be extremely similar, and you should be able to use a lot of the same helper methods