[8.x] Nav changes for "Manage Elastic Defend" and "Endpoint response actions" sections (backport #6073)

[mergify]

Resolves #6052.

Also updates serverless files whenever appropriate, to maintain as much alignment as possible between the two docsets.

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Several pages updated; refer to the HTML diff page or Files changed tab.

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This is an automatic backport of pull request #6073 done by Mergify.

[mergify]

Cherry-pick of 5f71cc1 has failed:

On branch mergify/bp/8.x/pr-6073
Your branch is up to date with 'origin/8.x'.

You are currently cherry-picking commit 5f71cc15.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   docs/management/admin/blocklist.asciidoc
	modified:   docs/management/admin/event-filters.asciidoc
	modified:   docs/management/admin/host-isolation-exceptions.asciidoc
	modified:   docs/management/admin/host-isolation-ov.asciidoc
	modified:   docs/management/admin/response-actions-config.asciidoc
	modified:   docs/management/admin/response-actions-history.asciidoc
	modified:   docs/management/admin/trusted-apps.asciidoc

Unmerged paths:
  (use "git add/rm <file>..." as appropriate to mark resolution)
	deleted by us:   docs/serverless/edr-manage/blocklist.asciidoc
	deleted by us:   docs/serverless/edr-manage/event-filters.asciidoc
	deleted by us:   docs/serverless/edr-manage/host-isolation-exceptions.asciidoc
	deleted by us:   docs/serverless/edr-manage/trusted-apps-ov.asciidoc
	deleted by us:   docs/serverless/endpoint-response-actions/host-isolation-ov.asciidoc
	deleted by us:   docs/serverless/endpoint-response-actions/response-actions-config.asciidoc
	deleted by us:   docs/serverless/endpoint-response-actions/response-actions-history.asciidoc

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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