[draft] Simplify complex tables

[colleenmcginnis]

Description

Simplifies complex tables across all impacted doc sets in this repo.

Note: I skipped a few pages that I think will become reference pages (Infrastructure app fields, Host metrics, and Container metrics).

cc @bmorelli25

Documentation sets edited in this PR

Check all that apply.

• Stateful (docs/en/observability/*)
• Serverless (docs/en/serverless/*)
• Integrations Developer Guide (docs/en/integrations/*)
• None of the above

Related issue

Related to elastic/docs-builder#112 (comment)

Checklist

• Product/Engineering Review
• Writer Review

Follow-up tasks

Select one.

• This PR does not need to be ported to another doc set because:
  • The concepts in this PR only apply to one doc set (serverless or stateful)
  • The PR contains edits to both doc sets (serverless and stateful)
• This PR needs to be ported to another doc set:
  • Port to stateful docs: <link to PR or tracking issue>
  • Port to serverless docs: <link to PR or tracking issue>

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[bmorelli25]

Ended up copying your patterns into the Kibana docs for some of these. Cases, for example: https://observability-docs_bk_4783.docs-preview.app.elstc.co/guide/en/observability/master/grant-cases-access.html.

Some of these aren't the prettiest, but they work. Nice job