<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **Refactor**
- Simplified the user interface by always displaying the new All Pages view, removing the feature flag and old page version.
- Updated selection interactions to use shift+click on document items instead of checkboxes.
- Centralized drag-and-drop functionality in document list items and simplified drag handle behavior.
- Generalized new page button component to accept standard HTML attributes.
- Changed test ID attributes on new page buttons and list headers to use standard `data-testid`.
- **Bug Fixes**
- Added stable test identifiers to new page buttons, document list items, menu items, and operation buttons for improved test reliability.
- Enabled external drag-and-drop support on the trash button.
- **Tests**
- Streamlined and updated end-to-end tests to match the new selection flow and UI changes, removing outdated or redundant test cases.
- Simplified utility functions and wait conditions in test helpers for better accuracy and maintainability.
- Updated selectors in tests to reflect new document item identifiers and centralized page element retrieval using utility functions.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Close [BS-3507](https://linear.app/affine-design/issue/BS-3507/edgeless-text-颜色无法-undoredo)
Close [BS-3426](https://linear.app/affine-design/issue/BS-3426/frame-修改背景色后不能撤销)
This PR fixes the issue where the color change of edgeless blocks could not be undone/redone, including notes, edgeless-text, and frames. It also addresses the problem of a tiny shape being unexpectedly retained on the canvas. The key changes are:
- Removal of `transact` from the `pop` method of edgeless elements.
- Refactoring of `onPickColor` for all edgeless elements and blocks to better control the lifecycle of custom color property changes.
- Addition of the missing custom background color feature for notes.
- Addition of undo/redo color tests for notes, frames, and edgeless-text.
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Added undo and redo support for color changes in frames, notes, and text blocks, allowing users to revert or reapply background and text color modifications.
- **Bug Fixes**
- Improved reliability of color picker interactions, ensuring consistent state management and transactional updates during color changes.
- **Tests**
- Introduced new end-to-end tests to verify undo/redo functionality for color changes in frames, notes, and text blocks.
- **Refactor**
- Streamlined color picker event handling for better maintainability and consistency across toolbars and style panels.
- Updated style panel structure and event handling for improved interaction and state management.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
