…99053)

## Summary

Added popover support to the graph component.
In order to scale the rendering component of nodes, we prefer not to add
popover per node but to manage a single popover for each use-case. In
the popover stories you can see an example of two different popovers
being triggered by different buttons on the node.

<details>
<summary>Popover support 📹 </summary>

https://github.com/user-attachments/assets/cb5bc2ce-037a-4f9b-b71a-f95a9362dde0

</details>

<details>
<summary>Dark mode support 📹 </summary>

https://github.com/user-attachments/assets/a55f2a88-ed07-40e2-9404-30a2042bf4fc

</details>

### How to test

To test this PR you can run

```
yarn storybook cloud_security_posture_packages
```

And to test the alerts flyout (for regression test):

Toggle feature flag in kibana.dev.yml

```yaml
xpack.securitySolution.enableExperimental: ['graphVisualizationInFlyoutEnabled']
```

Load mocked data

```bash
node scripts/es_archiver load x-pack/test/cloud_security_posture_functional/es_archives/logs_gcp_audit \
  --es-url http://elastic:changeme@localhost:9200 \
  --kibana-url http://elastic:changeme@localhost:5601

node scripts/es_archiver load x-pack/test/cloud_security_posture_functional/es_archives/security_alerts \
  --es-url http://elastic:changeme@localhost:9200 \
  --kibana-url http://elastic:changeme@localhost:5601
```

1. Go to the alerts page
2. Change the query time range to show alerts from the 13th of October
2024 (**IMPORTANT**)
3. Open the alerts flyout
5. Scroll to see the graph visualization : D

### Related PRs

- elastic#196034
- elastic#195307

### Checklist

- [ ] [Unit or functional
tests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)
were updated or added to match the most common scenarios
- [ ] This renders correctly on smaller devices using a responsive
layout. (You can test this [in your
browser](https://www.browserstack.com/guide/responsive-testing-on-local-server))
- [ ] This was checked for [cross-browser
compatibility](https://www.elastic.co/support/matrix#matrix_browsers)

(cherry picked from commit f3de593)