[Discover][UnifiedSearch] POC to enable onQueryChange

[kertal]

Summary

This is a currently failing attempt to make onQueryChange work in Kibana and to try to store the "dirty" edited state in Discover ... but it doesn't work, since the change seems not to arrive in the Editor?

Checklist

Check the PR satisfies following conditions.

Reviewers should verify this PR satisfies this list as well.

• 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
• If a plugin configuration key changed, check if it needs to be allowlisted in the cloud and added to the docker list
• This was checked for breaking HTTP API changes, and any breaking changes have been approved by the breaking-change committee. The release_note:breaking label should be applied in these situations.
• Flaky Test Runner was used on any tests changed
• The PR description includes the appropriate Release Notes section, and the correct release_note:* label is applied per the guidelines

Identify risks

Does this PR introduce any risks? For example, consider risks like hard to test bugs, performance regression, potential of data loss.

Describe the risk, its severity, and mitigation for each identified risk. Invite stakeholders and evaluate how to proceed before merging.

• See some risk examples
• ...

[elasticmachine]

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[kertal]

/ci

[kertal]

/ci

[kertal]

/ci

[elasticmachine]

💔 Build Failed

• Buildkite Build
• Commit: 0f7cc19

Failed CI Steps

• Check Types

History

• 💔 Build #310740 failed ab42d9a
• 💔 Build #310714 failed a2225b2

[kertal]

/ci ... Strange, i don't get type errors in the IDE locally

[kertal]

closing in favor of #224671