* Implemented predefined product options
* css
* added missing migration in the test app
* Added tests
* added test
* added test
* Added more testz
* Added validation
* Renamed add_optional_choice to add_empty_choice
* added release notes
* Added help_text help text.
yup
* Use a JSONField for the option value
* removed pylint
* fix display of multi and checkbox in basket and order (#13)
* fix display of multi and checkbox in basket and order
Co-authored-by: willeke huizing <38961397+willekeh@users.noreply.github.com>