[Fleet] Add doc links to unprivileged agents documentation

[criamico]

Summary

Add links to unprivileged agents documentation in Fleet & integration UI

Screenshots

Checklist

• 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

[obltmachine]

🤖 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!)

[criamico]

@elasticmachine merge upstream

[kilfoyle]

@criamico The elastic/ingest-docs#1087 PR is merged now.

[elasticmachine]

Pinging @elastic/fleet (Team:Fleet)

[criamico]

@elasticmachine merge upstream

[kilfoyle]

LGTM for the text! 🚢

[juliaElastic]

LGTM

[criamico]

@elasticmachine merge upstream

[kibana-ci]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: f990820

Failed CI Steps

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	1.4MB	1.4MB	+1.3KB
lists	142.7KB	142.7KB	+80.0B
total			+1.4KB

Page load bundle

Size of the bundles that are downloaded on every page load. Target size is below 100kb

id	before	after	diff
core	417.4KB	417.5KB	+80.0B

History

• 💛 Build #218242 was flaky 21c056a

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

cc @criamico