* Display the correct hint text depending on joint purchase
* update validation for non joint purchase
* Add person 6 questions and refactor check_answers_card_title
* update hint text
* Reuse join purchase page
* 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
kosiakkatrina
natdeanlewissoftwire