[Feature Request]: in-progress preview node

[JorgeR81]

Is there an existing issue for this?

• [X] I have searched the existing issues and checked the recent builds/commits

What would your feature do ?

I'd like to separate the KSampler node from the in-progress preview image. I want a larger preview, especially with wider images, without having to increase the size of the other widgets.

This would be more useful now, because we can have larger previews ( e.g. --preview-size 768 )

Since we can have previews in queue ( https://github.com/Comfy-Org/ComfyUI_frontend/pull/1091 ), is it possible to have an independent in-progress preview node ?

Proposed workflow

If previews are enabled, the KSampler would have an extra output to connect it to an "in-progress preview" node. If a connection is made, the preview inside the KSampler, would be disabled.

The "in-progress preview" and Image Preview nodes, could also be grouped in a single node.

Additional information

No response