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: Dashboard = Dashboard.objects.create(
            team=self.team, restriction_level=Dashboard.RestrictionLevel.ONLY_COLLABORATORS_CAN_EDIT
        )
        _, response_data = self._create_insight(
            data={"name": "on a restricted dashboard", "dashboards": [dashboard.pk]}
        )
        self.assertEqual(
            response_data["effective_restriction_level"], Dashboard.RestrictionLevel.ONLY_COLLABORATORS_CAN_EDIT
        )
        self.assertEqual(response_data["effective_privilege_level"], Dashboard.PrivilegeLevel.CAN_VIEW)
    def test_an_insight_on_both_restricted_and_unrestricted_dashboard_has_no_restrictions(self):
        dashboard_restricted: Dashboard = Dashboard.objects.create(
            team=self.team, restriction_level=Dashboard.RestrictionLevel.ONLY_COLLABORATORS_CAN_EDIT
        )
        dashboard_unrestricted: Dashboard = Dashboard.objects.create(
            team=self.team, restriction_level=Dashboard.RestrictionLevel.EVERYONE_IN_PROJECT_CAN_EDIT
        )
        _, response_data = self._create_insight(
            data={
                "name": "on a restricted and unrestricted dashboard",
                "dashboards": [dashboard_restricted.pk, dashboard_unrestricted.pk],
            }
        )
        self.assertEqual(
            response_data["effective_restriction_level"], Dashboard.RestrictionLevel.ONLY_COLLABORATORS_CAN_EDIT
        )
        self.assertEqual(response_data["effective_privilege_level"], Dashboard.PrivilegeLevel.CAN_EDIT)
    def test_an_insight_on_restricted_dashboard_does_not_restrict_admin(self):