Changes include:
- Modified code formatting to improve readability and conform to best coding practices.
- Updated type declarations using pipe (|) operator to indicate variable can hold multiple types.
- Adjusted the spacing around the pipe operator in type declarations for improved readability.

refactor: load correct customer data in order
refactor: better shipping information text

feat: pcsg/kunden/froilein-adrett-template#31; privacy policy, revocation, terms and conditions as order mail attachments