<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Introduced a new grouped document explorer with a masonry layout, advanced filtering, and multi-select capabilities.
- Added a floating toolbar for batch actions, such as deleting multiple documents.
- Implemented a feature flag to enable the new "All Docs" page, allowing gradual rollout.
- Added a new navigation component with links for Docs, Collections, and Tags.
- Introduced a display menu button supporting additional menu properties.
- **Enhancements**
- Redesigned navigation headers across document, collection, and tag pages for improved consistency and usability.
- Added new display and view toggling options for document lists.
- Improved styling and responsiveness for explorer and header components.
- Updated context to support dynamic view switching in the document explorer.
- **Bug Fixes**
- Updated context and prop types to enhance state management and user interactions.
- **Refactor**
- Replaced legacy page list views with a modern, grouped explorer interface.
- Simplified and modularized header components and styles for better maintainability.
- Removed workspace-specific controls from document headers to focus on explorer functionality.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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