Added functionality to allow multiple selected answers for diagnostic questionnaire.

Fixed health card number and health card number province being populated in patient form for new private patient.

Updated wording in patient authentication page.

Added referred date to get patient by attribute API for Accuro.

Updates to Create Invoice Form:

1. Fixed auto-submitting form when searching only for patient.

2. Disabled all fields and buttons when submission is ongoing.

Internal Updates:

1. Added billing status notification if a new staff with FTE count is added to clinic.

2. Updates to Accuro endpoints based on Accuro API 10.0.0 release.