When exporting data from [an insight](https://app.posthog.com/insights/oVHjTLUD), the action names weren't exported, making the CSV a little hard to follow.

As a user, I'd expect to see the same data in the export as I see in the table in-app.

<img width="1012" alt="image" src="https://user-images.githubusercontent.com/154479/166958828-9b3add76-633b-4f1d-ad2b-cf1ea2888b95.png">

posthog/api/test/test_insight.py
dashboard_own_team: Dashboard = Dashboard.objects.create(team=self.team)
        another_team = Team.objects.create(organization=self.organization)
        dashboard_other_team: Dashboard = Dashboard.objects.create(team=another_team)
        self._create_insight(
            data={
                "filters": {
                    "events": [{"id": "$pageview"}],
                    "properties": [{"key": "$browser", "value": "Mac OS X"}],
                    "date_from": "-90d",
                },
                "dashboards": [dashboard_own_team.pk, dashboard_other_team.pk],
            },
            expected_status=status.HTTP_400_BAD_REQUEST,
        )
    def test_cannot_update_insight_with_dashboard_from_another_team(self):