[MICROBA-1179]
- Continue renaming/removal of code referring to the Certificate "white list".
The Certificates Django app `CertificateWhitelist` model is going away in an effort to make our codebase more inclusive. It is being replaced
with the `CertificateAllowlist` model. This PR continues to replace references to the Certificate "whitelist" with "allowlist" wherever
possible. There should be no change in functionality, nor are there any changes in appearance.
[MICROBA-908]
- When adding a learner to the allowlist we now check if they have an invalidated certificate on the blocklist
- Refactor some pieces of the Certificate Invalidation flow
- Make it so an error message is displayed when trying to add someone to CertificateInvalidation list if they already appear on the Allowlist
- Add support to pass back and display an error message to Instructor Dashboard UI if a learner already appears on the certificate invalidation list when attempting to create certificate exceptions in bulk
- Add python tests for backend changes
- Disable xss linting warnings in certificate_bulk_whitelist.js (checked with security group first)
