Enable use in separate panel

[paddymul]

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Enhancement Description

I want buckaroo to be usable as a separate jupyter panel, like this

Pseudo Code Implementation

Amphi is built without ipywidgets. Here is the frontend side of that table
https://github.com/amphi-ai/amphi-etl/blob/main/jupyterlab-amphi/packages/pipeline-editor/src/ViewData.tsx#L95

I don't know where the python code that prepares the data for the panel lives @tgourdel

Worst case you could pull in the frontend js code
https://github.com/paddymul/buckaroo/blob/main/js/components/DFViewerParts/DFViewer.tsx
Demo here
https://buckaroo-data.readthedocs.io/en/latest/examples/#/DFViewerEx_large

It shouldn't be hard to integrate the Buckaroo Dataflow code to prepare the payload for DFViewer

Prior Art

This was prompted from a conversation with @tgourdel about amphi-etl

https://github.com/amphi-ai/amphi-etl/tree/main