feat(task-management): centralize Ant Design imports and enhance task components

- Introduced a new `antd-imports.ts` file to centralize Ant Design component imports, optimizing tree-shaking and improving maintainability.
- Updated various task management components (e.g., TaskRow, TaskGroup, VirtualizedTaskList) to utilize centralized imports, ensuring consistent styling and configuration.
- Enhanced task filtering and display features by adding new fields (e.g., start date, due date, estimation) to task components for improved usability.
- Refactored date handling in task components to utilize memoization for performance optimization.
- Improved overall styling and responsiveness of task management components, particularly in dark mode.

worklenz-frontend/package.json

@@ -26,7 +26,7 @@
     "@tanstack/react-table": "^8.20.6",
     "@tanstack/react-virtual": "^3.11.2",
     "@tinymce/tinymce-react": "^5.1.1",
-    "antd": "^5.24.9",
+    "antd": "^5.26.2",
     "axios": "^1.9.0",
     "chart.js": "^4.4.7",
     "chartjs-plugin-datalabels": "^2.2.0",