* refactor bulk upload with extract method
* add bulk upload mailer test
* bulk upload mails users to fix logs on website
* bulk uplad email change resume link
* refactor local variable name
* 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
Phil Lee
SamSeed-Softwire