Change access folder structure

[RenanSouza2]

Fixes #3583

Changes access golder structure

PR Checklist

• Tests
• Documentation
• Changeset entry (run npx changeset add)

[changeset-bot]

🦋 Changeset detected

Latest commit: 35402b9

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
openzeppelin-solidity	Major

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[ernestognw]

Thanks for the PR @RenanSouza2, we still need to agree on this, but in the meantime I'd recommend taking a look to the docs preview, you can find them on the CI checks (Netlify), because there are a few things to address within this PR:

• The navigation for the Access section will likely change to reflect those changes
• There are some cross references to the access contracts across the documentation that we will need to make sure are not broken

[RenanSouza2]

• There are some cross references to the access contracts across the documentation that we will need to make sure are not broken

About that, I am looking for broken links as so far the one I found was in the file releases-satability.adoc in [[major-releases]] section, the link is broken

update: In that file all but one github links are broken

[frangio]

I don't think this change breaks any links in the docs in particular.