Admin portal for instance superusers

[twinkarma]

Intended for the Sheffield team and superusers of the instance, used for managing the instance itself and provide a few useful tools for aggregating data from all of the surveys of all organisations on the instance.

• Export all data with consent for research use
• List all organisations, projects surveys
  • Ability to remove spurious organisations and users or ones that break terms of use
• Edit default SORT, consent and demographic questions, this needs more thought
• To find out more from Parveen

[Joe-Heffer-Shef]

Creating a custom page in Django Admin using the The Django admin site.

[Joe-Heffer-Shef]

I made two PRs:

• Add basic admin console #529 contains a nice basic UI
• feat: Add admin dashboard #507 has a bunch of other features but I don't like this PR