[UII] Allow components to be used for configured settings description

[jen-huang]

Summary

Spinning out a few unrelated tweaks from the work for #180778. This PR:

• In addition to strings, allows React components to be used for configured settings description
• Fixes small i18n issues
• Fixes some setting names to have sentence casing and adjust some description copies
• Moves deprecated unenrollment timeout setting to bottom of list

Screenshot with all changes:

[elasticmachine]

Pinging @elastic/fleet (Team:Fleet)

[apmmachine]

🤖 GitHub comments

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Just comment with:

• /oblt-deploy : Deploy a Kibana instance using the Observability test environments.
• run docs-build : Re-trigger the docs validation. (use unformatted text in the comment!)

[juliaElastic]

LGTM

[jen-huang]

@elasticmachine merge upstream

[kibana-ci]

💚 Build Succeeded

• Buildkite Build
• Commit: 2b393a7

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
fleet	1.3MB	1.3MB	+139.0B

History

• 💔 Build #209659 failed 49f6e65
• 💔 Build #209617 failed 66ef890
• 💔 Build #209436 failed 1f5614f
• 💚 Build #209328 succeeded 81bfdaa

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

cc @jen-huang

[kibanamachine]

💔 All backports failed

Status	Branch	Result
❌	8.14	Backport failed because of merge conflicts

Manual backport

To create the backport manually run:

node scripts/backport --pr 183203

Questions ?

Please refer to the Backport tool documentation