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/insight.py
request = self.context["request"]
        team = Team.objects.get(id=self.context["team_id"])
        tags = validated_data.pop("tags", None)  
        created_by = validated_data.pop("created_by", request.user)
        dashboards = validated_data.pop("dashboards", None)
        insight = Insight.objects.create(
            team=team, created_by=created_by, last_modified_by=request.user, **validated_data
        )
        if dashboards is not None:
            for dashboard in Dashboard.objects.filter(id__in=[d.id for d in dashboards]).all():
                if dashboard.team != insight.team:
                    raise serializers.ValidationError("Dashboard not found")
                DashboardTile.objects.create(insight=insight, dashboard=dashboard, last_refresh=now())
                insight.last_refresh = now()  
        
        self._attempt_set_tags(tags, insight)
        name_for_logged_activity = (
            insight.name if insight.name is not None and len(insight.name) > 0 else insight.derived_name
        )
        log_activity(
            organization_id=self.context["request"].user.current_organization_id,
            team_id=team.id,
            user=self.context["request"].user,
            item_id=insight.id,
            scope="Insight",
            activity="created",
            detail=Detail(name=name_for_logged_activity, short_id=insight.short_id),
        )
        return insight
    def update(self, instance: Insight, validated_data: Dict, **kwargs) -> Insight: