Allow to translate the web user interface experience

Preflight Checklist

• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for an issue that matches the one I want to file, without success.

Problem Description

Dex is globally english right now. By adjusting the web templates, we can manually translate strings. For a general higher user experience, translations would be good.

Proposed Solution

• Allow to configure languages
• add translations to web templates

Alternatives Considered

No response

Additional Information

Would allow to translate strings like