* feat: wip update sales org select
* feat: update routing and hidden in check answers methods
* feat: set sales org id as derived
* feat: update tests
* refactor: linting
* feat: update tests and radio options
* feat: update test
* feat: add value helper test for non-constant value question
* refactor: lint
* feat: freeze time in unrelated test
* refactor: linting
* Add postcode fields
* Add postcode page and questions
* Add postcode page to the property information subsection
* Only display local authority question if the la is not inferred
* Fix migration
* Move postcode validation
* Infer LA fields from postcode
* infer partial postcodes
* Display person 2, 3, 4 age question if their details are known
* Infer check answers value for age questions as 'Not known'
* Hide age known question in check answers if it is answered yes or no
* Add card numbers to household characteristics question
* Update gender identity depends on
* lint
* Add a field to completed sales log in factory
* Update person 1 gender identity to depend on the people count
* Do not show buyer 2 questions if it is not a joint purchase