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
_, response_data = self._create_insight(data={"name": "not on a dashboard"})
        self.assertEqual(
            response_data["effective_restriction_level"], Dashboard.RestrictionLevel.EVERYONE_IN_PROJECT_CAN_EDIT
        )
        self.assertEqual(response_data["effective_privilege_level"], Dashboard.PrivilegeLevel.CAN_EDIT)
    def test_an_insight_on_unrestricted_dashboard_has_no_restrictions(self):
        dashboard: Dashboard = Dashboard.objects.create(team=self.team)
        _, response_data = self._create_insight(
            data={"name": "on an unrestricted dashboard", "dashboards": [dashboard.pk]}
        )
        self.assertEqual(
            response_data["effective_restriction_level"], Dashboard.RestrictionLevel.EVERYONE_IN_PROJECT_CAN_EDIT
        )
        self.assertEqual(response_data["effective_privilege_level"], Dashboard.PrivilegeLevel.CAN_EDIT)
    def test_an_insight_on_restricted_dashboard_has_restrictions_cannot_edit_without_explicit_privilege(self):