* Enforce F821 undefined-name

* Enforce all pyflake lint rules

* swap legacy sdv15 link

* swap v15 ckpt examples to safetensors

* link the fp16 copy of the model by default

The created checkpoints contain workflow metadata that can be loaded by
dragging them on top of the UI or loading them with the "Load" button.

Checkpoints will be saved in fp16 or fp32 depending on the format ComfyUI
is using for inference on your hardware. To force fp32 use: --force-fp32

Anything that patches the model weights like merging or loras will be
saved.

The output directory is currently set to: output/checkpoints but that might
change in the future.

TODO: include some fp16 versions of the official ones.

* Added Google Drive mount feature to Colab Notebook.

* Don't set goole drive mount as default and rollback triton installation.

* colab notebook robust patch (while switching mounting mode)

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Co-authored-by: Lt.Dr.Data <lt.dr.data@gmail.com>

Specify which way is the recommended way to run ComfyUI in colab.