Update steps to configure dashboard for Security: Host module

[sodhikirti07]

Description:

This PR updates the steps to add & configure dashboard for the MLSecurity: Host OOTB module.

Related Issue:

• https://github.com/elastic/security-team/issues/10414

[github-actions]

Warning

It looks like this PR modifies one or more .asciidoc files. These files are being migrated to Markdown, and any changes merged now will be lost. See the migration guide for details.

[github-actions]

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[mergify]

This pull request does not have a backport label. Could you fix it @sodhikirti07? 🙏
To fixup this pull request, you need to add the backport labels for the needed
branches, such as:

• backport-/d./d is the label to automatically backport to the /d./d branch. /d is the digit
  NOTE: backport-skip has been added to this pull request.

[sodhikirti07]

@elastic/mlr-docs Can we backport this change to 8.18? The module is going to be released in 8.18. Can anyone help backporting this change?

[szabosteve]

This PR targets main. Changes pushed to main won't be published as this warning pointed out because the docs team is migrating documentation from asciidoc to MD. 8.18 will still be published from asciidoc. For this reason, I opened a PR to add these changes to the 8.18 branch. I close this PR in favour of that: #2988 I also opened an issue to add these changes to the MD files for 9.0.0. I'll ping you @sodhikirti07 on that PR as a reviewer.

[szabosteve]

This is the PR addressing 9.0: elastic/docs-content#720