* Implement flat mode to transform flat data with parentId to nested structure.
* Introduce lazy mode for on-demand loading of children.
* Update tree rendering logic to accommodate new modes.
* Enhance tree cell expansion logic to support lazy loading.
* Add dark mode styles for improved UI experience.
* Create comprehensive end-to-end tests for tree functionality.
- Implement SearchHistoryDropdown component for displaying recent searches
- Add useSearchHistory hook for managing search history in localStorage
- Integrate search history into SearchOverlay for user convenience
- Update GridToolbar to support filter presets
- Enhance SearchOverlay with close button and history display