* [AC-2274] Introduce CanEditAnyCiphersAsAdminAsync helper to replace EditAnyCollection usage
* [AC-2274] Add unit tests for CanEditAnyCiphersAsAdmin helper
* [AC-2274] Add Jira ticket
* [AC-1707] Add feature flag
* [AC-1707] Update CanEditAnyCiphersAsAdmin to fail for providers when the feature flag is enabled
* [AC-2274] Undo change to purge endpoint
* [AC-2274] Update admin checks to account for unassigned ciphers
* [AC-1707] Fix provider auth checks after merge with main
* [AC-1707] Fix tests after merge
* [AC-1707] Adjust CanEditCipherAsAdmin method to properly account for admin user types
- Fix associated unit tests
* [AC-1707] Formatting