feat(task-management): enhance task management UI with subtask functionality

- Added localization support for task management messages in multiple languages, including Albanian, German, English, Spanish, and Portuguese.
- Implemented subtask addition feature in the `TaskRow` component, allowing users to create and manage subtasks directly within the task interface.
- Introduced hover effects and improved styling for task rows to enhance user experience and interaction.
- Updated task indicators to display counts for subtasks, comments, and attachments, providing better visibility of task details.

worklenz-frontend/public/locales/pt/task-management.json

@@ -1,5 +1,15 @@
 {
   "noTasksInGroup": "Nenhuma tarefa neste grupo",
   "noTasksInGroupDescription": "Adicione uma tarefa para começar",
-  "addFirstTask": "Adicione sua primeira tarefa"
+  "addFirstTask": "Adicione sua primeira tarefa",
+  "openTask": "Abrir",
+  "subtask": "subtarefa",
+  "subtasks": "subtarefas",
+  "comment": "comentário",
+  "comments": "comentários",
+  "attachment": "anexo",
+  "attachments": "anexos",
+  "enterSubtaskName": "Digite o nome da subtarefa...",
+  "add": "Adicionar",
+  "cancel": "Cancelar"
 }