feat(task-management): implement new task management features with BulkActionBar and task grouping

- Introduced BulkActionBar component for bulk actions on selected tasks, including status, priority, and assignee changes.
- Added TaskGroup and TaskRow components to enhance task organization and display.
- Implemented grouping functionality with GroupingSelector for improved task categorization.
- Enhanced drag-and-drop capabilities for task reordering within groups.
- Updated styling and responsiveness across task management components for better user experience.

worklenz-frontend/src/components/taskListCommon/task-list-bulk-actions-bar/task-list-bulk-actions-bar.tsx

@@ -247,7 +247,7 @@ const TaskListBulkActionsBar = () => {
         project_id: projectId,
         members: selectedAssignees.map(member => ({
           id: member.id,
-          name: member.name,
+          name: member.name || '',
           email: member.email,
           avatar_url: member.avatar_url,
         })) as ITaskAssignee[],
@@ -437,7 +437,6 @@ const TaskListBulkActionsBar = () => {
                 placement="top"
                 arrow
                 trigger={['click']}
-                destroyOnHidden
                 onOpenChange={value => {
                   if (!value) {
                     setSelectedLabels([]);