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
if should_refresh(self.context["request"]):
            return now()
        dashboard_tile = self.dashboard_tile_from_context(insight, self.context.get("dashboard", None))
        result = self.get_result(insight)
        if result is not None:
            if dashboard_tile:
                return dashboard_tile.last_refresh
            else:
                return insight.last_refresh
        if dashboard_tile is not None:
            if dashboard_tile.last_refresh is not None:
                dashboard_tile.last_refresh = None
                dashboard_tile.save(update_fields=["last_refresh"])
        else:
            if insight.last_refresh is not None:
                
                insight.last_refresh = None
                insight.save(update_fields=["last_refresh"])
        return None
    def get_effective_privilege_level(self, insight: Insight) -> Dashboard.PrivilegeLevel:
        return insight.get_effective_privilege_level(self.context["request"].user.id)
    def to_representation(self, instance: Insight):
        representation = super().to_representation(instance)
        dashboard: Optional[Dashboard] = self.context.get("dashboard")
        representation["filters"] = instance.dashboard_filters(dashboard=dashboard)
        context_cache_key = self.context.get("filters_hash")
        representation["filters_hash"] = context_cache_key if context_cache_key is not None else instance.filters_hash
        return representation
class InsightViewSet(TaggedItemViewSetMixin, StructuredViewSetMixin, viewsets.ModelViewSet):