### Body

In the Pools UI we don't show the description column though we do have it:
https://github.com/apache/airflow/blob/99eeb84c820c8a380721e5d40f5917a01616b943/airflow/models/pool.py#L56

and we have it in the API:
https://github.com/apache/airflow/pull/19841

The task:
Expose the column in the UI
![Screenshot 2023-10-04 at 17 08 05](https://github.com/apache/airflow/assets/45845474/4ed7ed5b-8d42-4a72-b271-07d07066f914)


### Committer

- [X] I acknowledge that I am a maintainer/committer of the Apache Airflow project.
child_instances = [
                item
                for sublist in (child["instances"] for child in children if "instances" in child)
                for item in sublist
                if item["run_id"] == dag_run.run_id
                if item
            ]
            children_queued_dttms = (item["queued_dttm"] for item in child_instances)
            children_start_dates = (item["start_date"] for item in child_instances)
            children_end_dates = (item["end_date"] for item in child_instances)
            children_states = {item["state"] for item in child_instances}
            group_state = next((state for state in wwwutils.priority if state in children_states), None)
            group_queued_dttm = min(filter(None, children_queued_dttms), default=None)