Notifications: Don't display technical credential names to end users -- specifically in notifications

[lebraat]

User Story:

As a user reviewing my notifications
I want to see human-readable credential names
So that I can better understand what the notification relates to

Acceptance Criteria

GIVEN an expiration notification about a credential
WHEN A user tries to read it
THEN they read a human-readable notification, rather than our technical credential name.

In general, we should audit our entire user-facing app and footprint to ensure that we are not displaying our technical credential names to users, and instead, delivering human-readable credential names.

If you need support coming up with human-readable credential names, please let me (Daniel) know.

[nutrina]

If we fix this, it would not apply retroactively for notifications already stored in the DB.
But we could just remove the unread notifications, and this will cause them to be regenerated when the user logs in the next time (if the condition still exist).