### 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)

return self._set_notification_property(items, "notification_sent", True)
    @action(
        "mulnotificationsentfalse",
        "Set notification sent to false",
        "Are you sure you want to mark these SLA alerts as notification not sent yet?",
        single=False,
    )
    def action_mulnotificationsentfalse(self, items: list[SlaMiss]):
        return self._set_notification_property(items, "notification_sent", False)
    @action(
        "mulemailsent",
        "Set email sent to true",
        "Are you sure you want to mark these SLA alerts as emails were sent?",
        single=False,
    )
    def action_mulemailsent(self, items: list[SlaMiss]):
        return self._set_notification_property(items, "email_sent", True)
    @action(
        "mulemailsentfalse",
        "Set email sent to false",
        "Are you sure you want to mark these SLA alerts as emails not sent yet?",
        single=False,
    )
    def action_mulemailsentfalse(self, items: list[SlaMiss]):