Update app/app.py

Create faq.py

Create models/onnx.py

Create ckpt.py

Rename app/tabs/uvr.py to app/tabs/infer/uvr.py

Rename app/tabs/inference.py to app/tabs/infer/infer.py

Create train/train.py

Create uvr.py

Create inference.py

Rename app.py to app/app.py

Create app/tabs/.gitkeep