QR code broken

[richardbrockie]

The move to Heroku has broken QR code generation due to the underlying architecture differences. Django MEDIA files must now be stored on AWS S3 rather than the web server's filesystem.

Useful links:

• https://simpleisbetterthancomplex.com/tutorial/2017/08/01/how-to-setup-amazon-s3-in-a-django-project.html
• https://django-storages.readthedocs.io/en/latest/backends/amazon-S3.html

[richardbrockie]

Fixed!