* Update datails known numbering in the db
* Update check answers card headers
* Display same person pges for joint and non-joint purchase
* Only display person questions once
* Remove unused person class and methods
* Always display person known pages and update headers
* Fix depends on, show retirement validation for buyer 2
* test
* Add person 5 to test
* fix context description
* Display person known question for appropriate number of other household members
* tests
* update test
* Remove page id stubbing
* Remove redundant tests
* only put validation on the pages that are routed to
* Refactor tests
* Refactor working situation to take in person index
* Refactor age to take in person index
* Remove unused methods
* Cleanup
* Change person_index to a named argument
* extract details_known_question_id
* Fix answer options
* Add field_for_person methods