refactor(enhanced-kanban): improve code readability and integrate TaskListFilters component

- Refactored EnhancedKanbanBoard and EnhancedKanbanGroup components for better code organization and readability.
- Integrated TaskListFilters component to enhance task filtering capabilities within the kanban board.
- Cleaned up unnecessary whitespace and improved formatting for consistency across the codebase.

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

@@ -33,6 +33,8 @@ import EnhancedKanbanTaskCard from './EnhancedKanbanTaskCard';
 import PerformanceMonitor from './PerformanceMonitor';
 import './EnhancedKanbanBoard.css';
 
+// Import the TaskListFilters component
+const TaskListFilters = React.lazy(() => import('@/pages/projects/projectView/taskList/task-list-filters/task-list-filters'));
 interface EnhancedKanbanBoardProps {
   projectId: string;
   className?: string;
@@ -258,7 +260,16 @@ const EnhancedKanbanBoard: React.FC<EnhancedKanbanBoardProps> = ({ projectId, cl
   return (
     <div className={`enhanced-kanban-board ${className}`}>
       {/* Performance Monitor - only show for large datasets */}
-      {performanceMetrics.totalTasks > 100 && <PerformanceMonitor />}
+      {/* {performanceMetrics.totalTasks > 100 && <PerformanceMonitor />} */}
+      <Card
+        size="small"
+        className="mb-4"
+        styles={{ body: { padding: '12px 16px' } }}
+      >
+        <React.Suspense fallback={<div>Loading filters...</div>}>
+          <TaskListFilters position="board" />
+        </React.Suspense>
+      </Card>
 
       {loadingGroups ? (
         <Card>
@@ -285,7 +296,7 @@ const EnhancedKanbanBoard: React.FC<EnhancedKanbanBoardProps> = ({ projectId, cl
                   key={group.id}
                   group={group}
                   activeTaskId={dragState.activeTaskId}
-                  overId={overId}
+                  overId={overId as string | null}
                 />
               ))}
             </div>