Show upload button only to circle experts
Add files app and basic frontend test
Add service, refactor form
WIP: Upload file
WIP: Upload file to s3
WIP: Add course models, add view
WIP: Add local upload
WIP: Add basic get
WIP: Validate form
WIP: Add file list, download by name
WIP: Update documents after upload
WIP: Add delete button and API
WIP: Reset upload_finished_at when document is deleted
WIP: Handle upload error
Add s3 document
Daniel Egger