[lib] Add staff alert for decryption related errors

Summary:
https://linear.app/comm/issue/ENG-9807/add-staff-alert-for-decryption-related-errors

Depends on D13793

Test Plan: Run the app, cause some errors, see if alert appears.

Reviewers: tomek, kamil

Reviewed By: kamil

Subscribers: ashoat

Differential Revision: https://phab.comm.dev/D13794