## Bug description

When using the overall date filter on dashboards, after refreshing the dashboarditem will still show old data

## Expected behavior

Should show data that matches the overall filter

## How to reproduce

1. Add item to dashboard
2. Filter entire dashboard on date
3. refresh date

## Environment

- [ ] PostHog Cloud
- [ ] self-hosted PostHog, version/commit: _please provide_

## Additional context



#### *Thank you* for your bug report – we love squashing them!

posthog/api/test/test_dashboard.py
TESTS_API = True
    def test_get_dashboard(self):
        dashboard = Dashboard.objects.create(team=self.team, name="private dashboard", created_by=self.user)
        response = self.client.get(f"/api/dashboard/{dashboard.id}", content_type="application/json",)
        self.assertEqual(response.json()["name"], "private dashboard")
        self.assertEqual(response.json()["created_by"]["distinct_id"], self.user.distinct_id)
        self.assertEqual(response.json()["created_by"]["first_name"], self.user.first_name)
    def test_create_dashboard_item(self):
        dashboard = Dashboard.objects.create(team=self.team, share_token="testtoken", name="public dashboard")
        response = self.client.post(
            "/api/dashboard_item/",
            {
                "dashboard": dashboard.pk,
                "name": "dashboard item",
                "last_refresh": now(),  
            },
            content_type="application/json",
        )
        dashboard_item = DashboardItem.objects.get()
        self.assertEqual(dashboard_item.name, "dashboard item")
    def test_token_auth(self):
        self.client.logout()
        dashboard = Dashboard.objects.create(team=self.team, share_token="testtoken", name="public dashboard")
        test_no_token = self.client.get(f"/api/dashboard/{dashboard.pk}/")
        self.assertEqual(test_no_token.status_code, 403)
        response = self.client.get(f"/api/dashboard/{dashboard.pk}/?share_token=testtoken")
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response.json()["name"], "public dashboard")
    def test_shared_dashboard(self):