[ResponseOps][Rules] Fix flaky rule details page tests

[umbopepato]

Summary

Prevents the rule details page's lazyly loaded components from re-triggering the fallback state of the top-level <Suspense> that was causing a Flash of Content, the likely cause of #172941 and #173008.

Details

Slowed down screen capture of the loading flash

Rule.detail.page.loading.issue.mp4

My guess is that in the flaky test runs the Edit button was pressed just before the component was temporarily removed from the render tree and therefore the flyout couldn't render correctly.

To verify

1. Create any type of rule from Stack Management
2. Navigate to that rule's detail page (Stack Management > Rules > Click on rule in list)
3. Verify that the page header only loads once without going back to the loading indicator (throttling the network from the DevTools or capturing the screen and playing back the video slowed down might help).

Fixes #172941
Fixes #173008

[kibanamachine]

Flaky Test Runner Stats

🟠 Some tests failed. - kibana-flaky-test-suite-runner#6053

[❌] x-pack/test/functional_with_es_ssl/apps/triggers_actions_ui/config.ts: 26/50 tests passed.

see run history

[kibanamachine]

Flaky Test Runner Stats

🎉 All tests passed! - kibana-flaky-test-suite-runner#6073

[✅] x-pack/test/functional_with_es_ssl/apps/triggers_actions_ui/config.ts: 50/50 tests passed.

see run history

[elasticmachine]

Pinging @elastic/response-ops (Team:ResponseOps)

[umbopepato]

/ci

[kibana-ci]

💚 Build Succeeded

• Buildkite Build
• Commit: 135f62b

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
triggersActionsUi	1.6MB	1.6MB	+61.0B

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

[JiaweiWu]

LGTM!

[kibanamachine]

Flaky Test Runner Stats

🟠 Some tests failed. - kibana-flaky-test-suite-runner#6078

[❌] x-pack/test/functional_with_es_ssl/apps/triggers_actions_ui/config.ts: 175/200 tests passed.

see run history

[umbopepato]

Flaky Test Runner Stats

🟠 Some tests failed. - kibana-flaky-test-suite-runner#6078

[❌] x-pack/test/functional_with_es_ssl/apps/triggers_actions_ui/config.ts: 175/200 tests passed.

see run history

This refers to a previous commit. This is the correct one

[cnasikas]

Flaky Test Runner Stats

🟠 Some tests failed. - kibana-flaky-test-suite-runner#6078

[❌] x-pack/test/functional_with_es_ssl/apps/triggers_actions_ui/config.ts: 175/200 tests passed.
see run history

This refers to a previous commit. This is the correct one

@umbopepato If you go to the run history you can see that the flaky test runner ran on the latest commit.

Nevertheless, the error does not seem to be related to the tests you unskipped so it is safe to merge!