ZD app
Adds a Zendesk app for the Support Uploader.
General items to be complete for this MR to be considered complete:
-
Access and Secret keys for the AWS SDK loaded through Zendesk tokens -
Viewing existing files for a ticket -
Downloading files from the app directly (presigned URLs) -
Deleting files (can also be done in a follow-up) -
Moving constants to Zendesk settings - bucket name/region/prefix (optional, nice to have)