[📝 Docs]: Create a dedicated JSON hyper-schema page

[kwennB]

What Docs changes are you proposing?

Create a single page dedicated to the JSON hyper-schemas. This is part of the efforts to restructure the specification docs as outlined in #791 and being implemented in #823.

The PR for this issue will be added to #823.

Code of Conduct

• I agree to follow this project's Code of Conduct

[github-actions]

Hello! 👋

This issue has been automatically marked as stale due to inactivity 😴

It will be closed in 180 days if no further activity occurs. To keep it active, please add a comment with more details.

There can be many reasons why a specific issue has no activity. The most probable cause is a lack of time, not a lack of interest.

Let us figure out together how to push this issue forward. Connect with us through our slack channel : https://json-schema.org/slack

Thank you for your patience ❤️