* create logs iff the log itself is valid
* do not create logs if a setup section not complete
* bulk upload with 60% errors will not create logs
* extract magic number to constant
* add bulk upload absolute threshold error rate
* refactor with extract method
* 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
* Add monthly_charges_value_check field to sales
* Add monthly_charges_over_soft_max soft validation
* Add monthly_charges_value_check page and question
* Add monthly_charges_value_check pages to the relevant subsections
* Fix optional field name, add validation message
* test
* feat: create BulkUploadMailer class
* feat: correct template id for 'bulk upload with errors'
* feat: rename 'bulk upload failed' to 'bulk upload failed csv errors
* feat: split personalisation params onto separate lines + write "dummy"
* feat: add methods for remaining bulk upload emails
* feat: update dummy text to use bulk_upload argument
* chore: lint to add commas to last line of each batch
* change percent to % so that suffix is consistent with other similar questions
* fix rebase conflicts
* add hard validation that percentage owned after a staircasing transaction cannot be less than the percentage bought in that transaction, with associated tests
* add compound validation to ensure that logs of type older person shared ownership may not have a stairbought value of greater than 75% \n associated tests included
* remove duplicate method and use existing version
* fix rebase conflicts
* ensure schema correct and test of page number correct
* fix form handler test after rebase
* fix tests and ensure schema correct after rebase