[7.17](backport #39244) Document havester_limit for Filestream input and fix typo

[mergify]

Proposed commit message

This commit documents harvester_limit for the filestream input and replaces close_* by the correct key close.on_state_change.*.

Checklist

• [ ] My code follows the style guidelines of this project
• [ ] I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• [ ] I have made corresponding change to the default configuration files
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] I have added an entry in CHANGELOG.next.asciidoc or CHANGELOG-developer.next.asciidoc.

## Author's Checklist
## How to test this PR locally

Related issues

• Closes [Filebeat] harvester_limit is not documented for Filestream input #38784

## Use cases
## Screenshots
## Logs

---

This is an automatic backport of pull request #39244 done by [Mergify](https://mergify.com).

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• Start Time: 2024-04-29T18:26:08.061+0000

• Duration: 8 min 21 sec

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