Retrieves all image media for a platform.
curl --request GET \ --url https://client-request-service-staging-wghsjlqnoa-uw.a.run.app/image/platform/{platform-id}
[ { "id": 123, "slug": "<string>", "file_name": "<string>", "platform": "<string>", "created_at": "2023-11-07T05:31:56Z", "modified_at": "2023-11-07T05:31:56Z" } ]