Minor fixes to make the platform working in deployment
In this merge request, the following changes are made:
- The frontend links to the correct page
- The frontend uses retrieves the present preferences of the user.
- The backend successfully processes requests
- The backend makes use of the custom annotation AuthenticatedUser correctly
- The backend uses the updated GDPR of the user in routing of the HomeController
- The backend now has GET and DELETE request for preferences.
Edited by Otto Visser