Refactor content handling in GenerateContentFunction and update related models and serializers

- Enhanced GenerateContentFunction to save content in a dedicated Content model, separating it from the Tasks model.
- Updated Tasks model to remove SEO-related fields, now managed in the Content model.
- Modified TasksSerializer to include new content fields and adjusted the API to reflect these changes.
- Improved the auto_generate_content_task method to utilize the new save_output method for better content management.
- Updated frontend components to display new content structure and metadata effectively.

backend/igny8_core/modules/writer/views.py

@@ -13,7 +13,7 @@ class TasksViewSet(SiteSectorModelViewSet):
     """
     ViewSet for managing tasks with CRUD operations
     """
-    queryset = Tasks.objects.all()
+    queryset = Tasks.objects.select_related('content_record')
     serializer_class = TasksSerializer
     pagination_class = CustomPageNumberPagination  # Explicitly use custom pagination