[FIX] Make paths for zip files identical on different OS: macOS and Windows

[treee111]

This PR…

closes #75

• the zip created with macOS does not include full path in zip file
• the zip created with Windows does not include country folder in zip file
• with this, the created zips are identical with both OS macOS and Windows

Considerations and implementations

see #75 for comparison

zip for malta using macOS

zip for malta using Windows

How to test

1. checkout this branch git checkout fix-zip-paths-to-be-identical
2. create any map, e.g. of malta
3. extract the generated zips
4. check folder structure of unzipped folder

Pull Request Checklist

• Reviewed the Contributing Guidelines
  • Especially the Pull-Requests section
• commits (and commit-messages) are understandable
• {...}