[ML] Fixes links in messages.ts

[lcawl]

Summary

Related to #87389 and #88107

Replaces more hard-coded documentation links in the machine learning app with keywords from the documentation link service

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
• 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)
• This renders correctly on smaller devices using a responsive layout. (You can test this in your browser)
• This was checked for cross-browser compatibility

For maintainers

• This was checked for breaking API changes and was labeled appropriately

[lcawl]

@elasticmachine merge upstream

[kibanamachine]

💔 Build Failed

• continuous-integration/kibana-ci/pull-request
• Commit: 4b299d6
• Pipeline Steps (look for red circles / failed steps)
• Interpreting CI Failures

Failed CI Steps

• Setup Build Environment and Dependencies
• Setup Build Environment and Dependencies
• Setup Build Environment and Dependencies
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Metrics [docs]

‼️ ERROR: metrics for 4b299d6 were not reported

History

• 💔 Build #107048 failed 787ea16
• 💔 Build #97744 failed a3ec86a

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@elasticmachine merge upstream

[lcawl]

Replaced by #94568