feat(tasks): implement V3 API for task management and enhance UI components

- Introduced `getTasksV3` and `refreshTaskProgress` methods in `TasksControllerV2` to optimize task retrieval and progress refreshing.
- Updated API routes to include new endpoints for V3 task management.
- Enhanced frontend components to utilize the new V3 API, improving performance by reducing frontend processing.
- Added `VirtualizedTaskList` and `VirtualizedTaskGroup` components for efficient rendering of task lists.
- Updated task management slice to support new V3 data structure and improved state management.
- Refactored styles for better dark mode support and overall UI consistency.

worklenz-frontend/src/index.css

@@ -1,5 +1,6 @@
 @import url("https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap");
 @import url("./styles/customOverrides.css");
+@import url("./styles/task-management.css");
 
 @tailwind base;
 @tailwind components;