Use `service_account_email` rather than `signer_email` _in all places_ to get the email address of the "owner" of the Google Drives (!18) · Merge requests · Information Services / DevOps / Digital Admissions / Pool Applicant Document Management

Use service_account_email rather than signer_email in all places to get the email address of the "owner" of the Google Drives.

Fixes !17 (merged) not changing all instances of signer_email.

Use `service_account_email` rather than `signer_email` _in all places_ to get the email address of the "owner" of the Google Drives