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[BS-3624](https://linear.app/affine-design/issue/BS-3624/page模式单选图片的时候希望有comment-按钮)
#### PR Dependency Tree
* **PR #13304** 👈
This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
* **New Features**
* Added a comment button to the image and surface reference block
toolbars for easier commenting.
* **Refactor**
* Simplified array flattening operations across multiple components and
utilities by replacing `.map(...).flat()` with `.flatMap(...)`,
improving code readability and maintainability.
* **Bug Fixes**
* Improved comment creation logic to allow adding comments even when
selections exist.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
L-Sun