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
{"name": "insight new name", "description": "Internal system metrics.",}
            )
            short_id = insight["short_id"]
            frozen_time.tick(delta=timedelta(minutes=10))
            response = self.client.delete(f"/api/projects/{self.team.id}/insights/{insight_id}",)
            self.assertEqual(response.status_code, status.HTTP_204_NO_CONTENT)
            response = self.client.get(f"/api/projects/{self.team.id}/insights/{insight_id}",)
            self.assertEqual(response.status_code, status.HTTP_404_NOT_FOUND)
            self.assert_insight_activity(
                insight_id=None,
                expected=[
                    {
                        "user": {"first_name": "", "email": "user1@posthog.com"},
                        "activity": "deleted",
                        "created_at": "2012-01-14T03:31:34Z",
                        "scope": "Insight",
                        "item_id": str(insight_id),
                        "detail": {"changes": None, "merge": None, "name": "insight new name", "short_id": short_id},
                    },
                    {
                        "user": {"first_name": "", "email": "user1@posthog.com"},
                        "activity": "created",
                        "created_at": "2012-01-14T03:21:34Z",
                        "scope": "Insight",
                        "item_id": str(insight_id),
                        "detail": {"changes": None, "merge": None, "name": "insight new name", "short_id": short_id},
                    },
                ],
            )
    def test_cannot_set_filters_hash_via_api(self):