[ML][AIOps] Log rate analysis: ensure ability to sort on Log rate change

[alvarezmelissa87]

Summary

This PR

• updates the LogRateAnalysisResultsTable to use EuiInMemoryTable to simplify sorting and pagination
• adds sorting to Log rate change column

Related meta issue: #187684

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
• Documentation was added for features that require explanation or tutorials
• Unit or functional tests were updated or added to match the most common scenarios
• Flaky Test Runner was used on any tests changed
• Any UI touched in this PR is usable by keyboard only (learn more about keyboard accessibility)
• Any UI touched in this PR does not create any new axe failures (run axe in browser: FF, Chrome)
• If a plugin configuration key changed, check if it needs to be allowlisted in the cloud and added to the docker list
• This renders correctly on smaller devices using a responsive layout. (You can test this in your browser)
• This was checked for cross-browser compatibility

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