fix: Add ory-prettier-styles to main repo

[kevgo]

Proposed changes

Add ory-prettier-styles to main repo so that npm run format works there.

Checklist

• I have read the contributing guidelines.
• I have read the security policy.
• I confirm that this pull request does not address a security
  vulnerability. If this pull request addresses a security. vulnerability, I
  confirm that I got green light (please contact
  security@ory.sh) from the maintainers to push
  the changes.
• I have added tests that prove my fix is effective or that my feature
  works.
• I have added or changed the documentation.

[zepatrik]

Maybe also add a npm run format:check directive and use the GH action from https://github.com/ory/prettier-styles ?

[kevgo]

@zepatrik good idea to add the format:check task! I also like the idea of automating this further, for example via a GitHub action. Let's do that as a separate pull request.

[kevgo]

All comments addressed, please take another look!