[Security Solution] expandable flyout - add status to flyout header

[PhilippeOberti]

Notes: this PR needs to be merged first

Summary

This PR introduces the alert status to the expandable flyout right section header.
The status component is reused from the existing flyout, and keeps the same behavior:

• click on the arrow opens a dropdown with 3 options
  • Mark as open
  • Mark as closed
  • Mark as acknowledged
• when option in the dropdown is clicked, the flyout is being closed (this is because the UI doesn't update automatically, one day we'll fix this issue - see this ticket and this one)

Screen.Recording.2023-07-14.at.12.22.38.PM.mov

https://github.com/elastic/security-team/issues/7002

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
• Unit or functional tests were updated or added to match the most common scenarios

[christineweng]

Desk tested and LGTM! Left some nits on casting and ui spacing.

[kibana-ci]

💚 Build Succeeded

• Buildkite Build
• Commit: 28a8fb4
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Metrics [docs]

Module Count

Fewer modules leads to a faster build time

id	before	after	diff
securitySolution	4272	4273	+1

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
securitySolution	9.8MB	9.8MB	+2.6KB

History

• 💛 Build #142549 was flaky 4a8c1aab9e89b68da3344bb3ca1e4a1908bc275e
• 💔 Build #142521 failed efbe353932b4c0463fa3254b7b694498820d0ee5
• 💔 Build #142499 failed 28f71c908074f3e7057fe9ad78d156b0eb9a069d
• 💔 Build #142484 failed 113c5cef09a12ff48cf3b8dc8a1b76634241579c

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