The prettier pre-commit hook is deprecated -- it should be removed

[brucellino]

Short Description of the issue

We declare the prettier hook in our pre-commit configuiration. However, this hook has been deprecated since April 2024 and the repository hosting it is archived.
The hook still works, but it will probably not be reliable going forward.

There does not seem to be an alternative prettier hook for the pre-commit framework; prettier themselves do not include it in their documentation.

Summary of proposed changes

I do not propose we follow the Prettier documentation on pre-commit hooks, which invoke a different framework than what we have adopted.
Rather, I suggest we adopt a pre-commit hook configure for the content in question.
Unfortunately, MegaLinter is too big for a pre-commit hook.