#### PR Dependency Tree
* **PR #12924** 👈
* **PR #12925**
This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Introduced comment and comment mention notifications, including email
notifications when users are mentioned or receive comments on documents.
* Added new email templates for comment and comment mention
notifications.
* Users can now control whether they receive comment-related emails via
a new user setting.
* **Bug Fixes**
* None.
* **Documentation**
* Updated GraphQL schema documentation to reflect new notification types
and user settings.
* **Refactor**
* Streamlined and enhanced test coverage for notification and user
settings, including comment notifications.
* **Chores**
* Improved test setup and snapshot coverage for user settings and
notifications.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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