[Cloud Security] Converts graph visualization from experimental feature to the advanced settings

[kfirpeled]

Summary

During 8.17 development cycle, we introduced a new feature behind the experimental flag.
A user could not opt-in and use it on serverless either. Therefore this change does not introduce a breaking change.

How to test

1. Toggle feature flag
2. Load mock data

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

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

Related PRs

• [Cloud Security] Added graph visualization in alert's flyout #196034
• [Cloud Security] Graph visualization and API #195307

Checklist

Delete any items that are not applicable to this PR.

• Any text added follows EUI's writing guidelines, uses sentence case text and includes i18n support
• Documentation was added for features that require explanation or tutorials
• Unit or functional tests were updated or added to match the most common scenarios
• Flaky Test Runner was used on any tests changed

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