* Add new nationality columns
* Add nationality questions to lettings
* Add nationality questions to sales
* Infer nationality where appropriate
* Add synonyms
* Update csv exports
* Export nationality_all for 24/25
* Update prefers not to say value
* Set 24/25 nationality fields from BU
* Undo the export (there's a separate ticket)
* Correctly display answers
* Rebase fixes, tests and lint
* Set nationality from lettings BU 24/25
* Rename files, add synonyms and accents
* Fix sales csvs
* Extract constant
* create migration for new column
* create page class and add to household characteristics
* create question for buyer 2 nationality and associated test file
* fix failing test after added page
* rename method after code review
* add question number for the new question to allow CLDC-1864 to progress with fewer conflicts/complications
* remove question no longer needed and associated test file
* amend page and the other question in that page that determined whether the deleted question should be shown
update associated test files
* createa a migration to remove the column for the deleted question
* update test broken by changes
* fix test broken by changes
* Display the correct error for privacy notice and display the partial guidance at the top by default
* Always display privacy notice question
* Disable the rest of the housing characteristics questions until privacynotice is answered
* fix tests
* remove duplicate field
* Display the household questions if the buyers were not interviewed