* 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
- Implement column pinning functionality allowing users to pin columns to the left or right.
- Introduce data grouping capabilities for better data organization.
- Enhance the theming guide with new styles for pinned columns and loading indicators.
- Add infinite scroll support with loading indicators for improved user experience.
- Update CSS styles to accommodate new features and improve visual feedback.
- refactor state structure to include app, layout, navigation, owner, program, session, and user
- add slices for managing program, session, owner, user, layout, navigation, and app states
- create context provider for global state with automatic fetching and throttling
- implement persistence using IndexedDB with localStorage fallback
- add comprehensive README documentation for usage and API
