This patch fixes a bug in LTXVCropGuides when the latent has no
keyframes. Additionally, the first frame is always added as a keyframe.

Co-authored-by: Andrew Kvochko <a.kvochko@lightricks.com>

Credits: Lightricks team.

For users of the portable version, there are occasional instances where commands are misinterpreted.

New ConditioningSetAreaPercentageVideo node.

* improved: better installation guide
- change `pip` to `{sys.executable} -m pip`
modified: To prevent the guide message from being obscured by a complex error message, apply `exit` instead of `raise`.

* ruff fix

* Use frontend pypi package

* Remove web/

* nit

* nit

* Update importlib logic

* Remove unused gh action

* Update code owners

* Update codeowners

* error message

The idea is that you can indicate how much quality vs speed you want.

At the moment:

--fast 2 enables fp16 accumulation if your pytorch supports it.
--fast 5 enables fp8 matrix mult on fp8 models and the optimization above.

--fast without a number enables all optimizations.

Instructions shouldn't recommend to run comfyui with --listen

Co-authored-by: huzhan <huzhan@cambricon.com>

Fix bug when changing the compute dtype on wan.