The DAGs main page has All/Active/Paused.

It would be nice if we can have also Running Now which will show all the DAGs that have at least 1 in Running of DAG runs:
![Screen Shot 2021-08-25 at 11 30 55](https://user-images.githubusercontent.com/62940116/130756490-647dc664-7528-4eb7-b4d8-515577f7e6bb.png)


For the above example the new DAGs tab of Running Now should show only 2 rows.
The use case is to see easily what DAGs are currently in progress.

"""Set state to 'failed'."""
        self.set_task_instance_state(tis, State.FAILED)
        self.update_redirect()
        return redirect(self.get_redirect())
    @action("set_success", "Set state to 'success'", "", single=False)
    @action_has_dag_edit_access
    @action_logging
    def action_set_success(self, tis):
        """Set state to 'success'."""
        self.set_task_instance_state(tis, State.SUCCESS)
        self.update_redirect()
        return redirect(self.get_redirect())
    @action("set_retry", "Set state to 'up_for_retry'", "", single=False)
    @action_has_dag_edit_access
    @action_logging
    def action_set_retry(self, tis):
        """Set state to 'up_for_retry'."""
        self.set_task_instance_state(tis, State.UP_FOR_RETRY)
        self.update_redirect()
        return redirect(self.get_redirect())
    @action("set_skipped", "Set state to 'skipped'", "", single=False)
    @action_has_dag_edit_access
    @action_logging
    def action_set_skipped(self, tis):
        """Set state to skipped."""
        self.set_task_instance_state(tis, TaskInstanceState.SKIPPED)
        self.update_redirect()
        return redirect(self.get_redirect())
class AutocompleteView(AirflowBaseView):