refactor(task-list): update subtask and indicator visibility logic

- Modified subtask visibility conditions across TaskCard, EnhancedKanbanTaskCard, KanbanTaskCard, and TaskRow components to only display when the count is greater than 1.
- Enhanced task indicators for comments and attachments to follow the same visibility logic.
- Added new dependencies for task management types to support subscriber and attachment features.

worklenz-frontend/src/components/kanban-board-management-v2/kanbanTaskCard.tsx

@@ -195,12 +195,12 @@ const KanbanTaskCard: React.FC<TaskRowProps> = ({
                 <ClockCircleOutlined /> {task.time_spent_string}
               </span>
             )}
-            {task.comments_count && task.comments_count > 0 && (
+            {task.comments_count && task.comments_count > 1 && (
               <span className="kanban-task-indicator">
                 <MessageOutlined /> {task.comments_count}
               </span>
             )}
-            {task.attachments_count && task.attachments_count > 0 && (
+            {task.attachments_count && task.attachments_count > 1 && (
               <span className="kanban-task-indicator">
                 <PaperClipOutlined /> {task.attachments_count}
               </span>