docs: fix pre.sh (backport #22194)

[mergify]

Description

Closes: #XXXX

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Author Checklist

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I have...

• included the correct type prefix in the PR title, you can find examples of the prefixes below:

• confirmed ! in the type prefix if API or client breaking change

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• provided a link to the relevant issue or specification

• reviewed "Files changed" and left comments if necessary

• included the necessary unit and integration tests

• added a changelog entry to CHANGELOG.md

• updated the relevant documentation or specification, including comments for documenting Go code

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I have...

• confirmed the correct type prefix in the PR title
• confirmed all author checklist items have been addressed
• reviewed state machine logic, API design and naming, documentation is accurate, tests and test coverage

Summary by CodeRabbit

• Documentation
  • Updated the directory structure for module documentation, changing the base path for MODULE_DIRECTORY.
  • Continued support for copying various README files and documentation into the new structure.
  • Cleaned up the build environment by removing outdated or unnecessary files and directories.

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This is an automatic backport of pull request #22194 done by [Mergify](https://mergify.com).