### Apache Airflow version

2.7.0rc2

### What happened

In the Airflow UI, currently, the DAG Processor is visible in the Cluster Activity page even if there is no stand-alone dag processor. 

### What you think should happen instead

It should be hidden if there is no stand-alone dag processor.

### How to reproduce

Run Airflow 2.7 

### Operating System

Mac OS

### Versions of Apache Airflow Providers

Airflow > 2.7

### Deployment

Official Apache Airflow Helm Chart

### Deployment details

_No response_

### Anything else

_No response_

### Are you willing to submit PR?

- [X] Yes I am willing to submit a PR!

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)

no_dagrun = True
        else:
            ti = dag_run.get_task_instance(task_id=task_id, map_index=map_index, session=session)
            if ti:
                ti.refresh_from_task(raw_task)
            else:
                flash(f"there is no task instance with the provided map_index {map_index}", "error")
                return self.render_template(
                    "airflow/ti_code.html",
                    show_trigger_form_if_no_params=conf.getboolean(
                        "webserver", "show_trigger_form_if_no_params"
                    ),
                    html_dict=html_dict,
                    dag=dag,
                    task_id=task_id,
                    execution_date=execution_date,
                    map_index=map_index,
                    form=form,
                    root=root,
                    title=title,
                )
        try:
            ti.get_rendered_template_fields(session=session)
        except AirflowException as e:
            if not e.__cause__:
                flash(f"Error rendering template: {e}", "error")
            else:
                msg = Markup("Error rendering template: {0}<br><br>OriginalError: {0.__cause__}").format(e)
                flash(msg, "error")
        except Exception as e: