Feature Request: Export Language Settings and OXS ZIP Bundle Support

Hi! I have two feature requests that would make the app even more useful.

1. Language settings for the Export feature

Could you add a language selection option to the Export settings, allowing users to choose languages such as Spanish, German, French, and others?

I tried changing the language to Spanish, but the Export page still appears in English. It would be great if the language setting also applied to the entire Export page, including its menus, buttons, labels, and other interface elements.

2. Include OXS files in ZIP bundles

Would it be possible to include the OXS file format as an option when exporting a ZIP bundle? This would allow users to download the PDF patterns and their corresponding OXS files together in a single ZIP file, making it much more convenient for customers who use apps such as Cross Stitch Saga.

Thank you for considering these suggestions! I really appreciate your work on improving the app.