[Security Solution] Add visualization in flyout advanced setting in s…

…erverless (elastic#196211)

## Summary

This PR adds `securitySolution:enableVisualizationsInFlyout` setting in
serverless, which allow users to enable the visualizations (analyzer,
session view) in alert flyout experience.

(cherry picked from commit 909879b)

packages/serverless/settings/security_project/index.ts

@@ -23,4 +23,5 @@ export const SECURITY_PROJECT_SETTINGS = [
   settings.SECURITY_SOLUTION_NEWS_FEED_URL_ID,
   settings.SECURITY_SOLUTION_ENABLE_NEWS_FEED_ID,
   settings.SECURITY_SOLUTION_DEFAULT_ALERT_TAGS_KEY,
+  settings.SECURITY_SOLUTION_ENABLE_VISUALIZATIONS_IN_FLYOUT_SETTING,
 ];