Simplify install: add PyTorch cu130 repo for torch/vision/audio

[wachawo]

Changes:

• Added PyTorch wheel repository https://download.pytorch.org/whl/cu130 to make installing torch, torchvision, and torchaudio easier and to simplify Docker image builds.

• The installation for macOS is left with pypi.org.

• Added package accelerate, which is required when running with the --cpu-offload flag.

ImportError: CPU offloading requires the 'accelerate' package. Install it with: pip install accelerate

Possible installation options:

docker compose build

pip install -r moshi/requirements.txt

uv pip install moshi/.

pip install moshi/.
pip install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/cu130

These changes simplify and automate the deployment process.

Fix #23 #31

[CharlesMcquade]

Definitely need this one ASAP