chore(slo): improve index selection

[kdelemme]

Resolves #159423

📝 Summary

This PR changes the index selection component behaviours. We are fetching the Data Views (limit to 10 at a time). The user can select one of them, or search for other Data Views and index pattern that matches at least on index.

Therefore the user can choose any Data Views matching a search, or the index pattern derived from the search, if it matches at least one index.

Screenshot

🧪 Testing

1. Create 11 data views or more
   Easiest method is to use curl with a POST on /api/data_views/data_view with a random payload:

{
  "data_view": {
     "title": "{% uuid 'v4' %}-log*",
     "name": "{% uuid 'v4' %} "
  }
}

2. Go to the SLO form and select custom KQL, then search for a data view or another index pattern

[apmmachine]

🤖 GitHub comments

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[elasticmachine]

Pinging @elastic/actionable-observability (Team: Actionable Observability)

[kibana-ci]

💚 Build Succeeded

• Buildkite Build
• Commit: 2b5e89d
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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
observability	1.0MB	1.0MB	-116.0B

Unknown metric groups

ESLint disabled line counts

id	before	after	diff
enterpriseSearch	13	15	+2
observability	39	38	-1
securitySolution	411	415	+4
total			+5

Total ESLint disabled count

id	before	after	diff
enterpriseSearch	14	16	+2
observability	44	43	-1
securitySolution	494	498	+4
total			+5

History

• 💔 Build #136173 failed 6f3f96c9c4fbf21ce2c780375fd06d3bb90e326f
• 💔 Build #136168 failed 8ff3a0b64c544eb2d0b1af50b242143bb1b41e09
• 💔 Build #136150 failed 4ec909c
• 💔 Build #135824 failed 43b1f6390f31bf48e1d135ee304ac52f4b5ca82f

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

cc @kdelemme

[CoenWarmer]

Tested and works great.