Title: Danish voice dictation produces garbled/unusable text

Description: Voice dictation in Lumo is broken for Danish. The microphone works and live transcription runs, but the output is completely unintelligible — garbled text that cannot be used. English dictation works fine, so the feature itself functions; the issue is specific to Danish language support.

This makes the dictation feature effectively useless for Danish users. Suggestion: add proper Danish ASR support or allow manual language selection instead of relying on auto-detection.