feat(enhanced-kanban): integrate ImprovedTaskFilters and fetchBoardSubTasks for enhanced task management

- Replaced the existing TaskListFilters with ImprovedTaskFilters in EnhancedKanbanBoard for better filtering capabilities.
- Updated EnhancedKanbanTaskCard to handle subtask expansion and fetching using the new fetchBoardSubTasks action.
- Added sectionId prop to EnhancedKanbanTaskCard and EnhancedKanbanGroup for improved task organization.
- Refactored project-view-header to utilize fetchEnhancedKanbanGroups for loading task groups.

worklenz-frontend/src/components/enhanced-kanban/EnhancedKanbanGroup.tsx

@@ -121,6 +121,7 @@ const EnhancedKanbanGroup: React.FC<EnhancedKanbanGroupProps> = React.memo(({
   const renderTask = useMemo(() => (task: any, index: number) => (
     <EnhancedKanbanTaskCard
       key={task.id}
+      sectionId={group.id}
       task={task}
       isActive={task.id === activeTaskId}
       isDropTarget={overId === task.id}
@@ -488,6 +489,7 @@ const EnhancedKanbanGroup: React.FC<EnhancedKanbanGroupProps> = React.memo(({
 
                 <EnhancedKanbanTaskCard
                   task={task}
+                  sectionId={group.id}
                   isActive={task.id === activeTaskId}
                   isDropTarget={overId === task.id}
                 />