- Updated the widget processing API to accept tool names as an optional parameter.
- Consolidated tool imports and created an `allTools` array for easier management.
- Added a new ToolSelector component for selecting tools in the widget configuration modal.
- Enhanced date difference and timezone conversion tools with improved descriptions and error handling.
- Refactored types for widgets and dashboard to streamline the codebase and improve type safety.
- Removed deprecated types and organized type definitions into separate files for better maintainability.
