[Feature Request]: Add progress bar to subgraph nodes in a workflow

[LaVie024]

Is there an existing issue for this?

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

What would your feature do ?

Currently, subgraph nodes do not display progress bars when running. This can be quite an issue if there is a KSampler or other node in a subgraph that usually takes time, and we are unable to see which node in specific is currently being used towards the progress of a run.

Proposed workflow

1. Add a progress bar to subgraph nodes like any other node
2. Could be accomplished relatively easily by just getting the progress of the nodes in a subgraph and displaying that onto the subgraph node, such as if there are multiple KSamplers in a subgraph, display 50% on the progress bar on the node when one is done and such.

Additional information

No response

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[LevelPixel]

I would also like to see two progress bars on a subgraph node - the first bar would be the overall progress of the entire node, and the second bar would be the progress of the current node in the subgraph. This would better reflect the progress of the subgraph.

Perhaps a more complex feature for the distant future, I would also like to see this:
When hovering/selecting a subgraph, a mini-window (or a sidebar on the right/left) would appear, focusing on the currently running node (without links or other nodes) in the subgraph.
This would be very useful in those cases where you need to see visual progress from internal nodes (like ksampler's preview).