Add server-side validation for adding parent organizations

[SAUMILDHANKAR]

Overview

In this issue, will add server-side validation for parent organizations.

Action Items

• [ ] Create the validation flow.
• [ ] Test it.

Resources/Instructions

• Related file: https://github.com/hackforla/food-oasis/blob/develop/server/app/routes/parent-organization-router.ts

[SAUMILDHANKAR]

Parking this to work on issue from sprint 5 first.

[farahrobleh]

@entrotech what is the definition of a parent organization in the context of this issue?

[ExperimentsInHonesty]

example

Salvation army might have branches, and each one has a listing. The parent organization would be salvation army, the child would be salvation army, east la