Fix UI layout visibility bug and make video preview responsive

fix: handle short clips in demucs vocal separation

redesign UI two-column layout and add MP4 support

fix: install libsndfile for torchaudio WAV backend

fix: install git in Docker for DeepFilterNet init

fix: rewrite Dockerfile patch as one-liner

improve noise reduction with double pass DeepFilterNet

Fix no df

fix: torchaudio compatibility patch for deepfilternet

fix: install ffmpeg in Docker container

add README config and fix gitignore

initial commit