[7.x] [Security Solution][Detections] ML Popover overflow fix (#93525)

[kibanamachine]

Backports the following commits to 7.x:

• [Security Solution][Detections] ML Popover overflow fix ([Security Solution][Detections] ML Popover overflow fix #93525)

[kibanamachine]

💛 Build succeeded, but was flaky

• continuous-integration/kibana-ci/pull-request

• Commit: 1742710

• Storybooks Preview

• Flaky suites:

  • xpack-securitySolutionCypressChrome

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Test Failures

Kibana Pipeline / general / "before all" hook for "should open a modal".Open timeline Open timeline modal "before all" hook for "should open a modal"

Link to Jenkins

Stack Trace

Failed Tests Reporter:
  - Test has not failed recently on tracked branches

AssertionError: Timed out retrying after 60000ms: Expected to find element: `[data-test-subj="title-c0a65240-7c9c-11eb-93b7-c7ad0ecc5fd8"]`, but never found it.

Because this error occurred during a `before all` hook we are skipping the remaining tests in the current suite: `Open timeline`

Although you have test retries enabled, we do not retry tests when `before all` or `after all` hooks fail
    at Object.openTimelineById (http://localhost:6121/__cypress/tests?p=cypress/integration/timelines/open_timeline.spec.ts:16073:15)
    at Context.eval (http://localhost:6121/__cypress/tests?p=cypress/integration/timelines/open_timeline.spec.ts:15046:28)

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Metrics [docs]

Async chunks

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

id	before	after	diff
securitySolution	7.8MB	7.8MB	+70.0B

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

cc @dplumlee