Reposition widgets

[brichet]

Add a command to reposition widgets in the lab shell.

This PR may have to be updated if #24 goes first, or the other way around, to handle the user facing strings localization.

This command initially comes from jupyterlite-ai: https://github.com/jupyterlite/ai/blob/9ef5e207a02a2d25d22701fa20ab676ec6a87040/packages/ai/src/index.ts#L739

[jtpio]

Thanks for looking into this.

Actually wondering if this is still needed with JupyterLab 4.6 or if we could use the upstream commands instead? https://jupyterlab.readthedocs.io/en/latest/user/interface_customization.html#move-open-widgets

[brichet]

Thanks for the feedback, this command is indeed partially covered by jupyterlab/jupyterlab#17880.

But I 'm not sure that there is a way to split main area by command only currently.
jupyterlab/jupyterlab#18192 introduced it, but does not allow a widget id in args, it uses only the mouse hit test.

That said, we should fix it upstream in jupyterlab, since the command already exists.

[jtpio]

That said, we should fix it upstream in jupyterlab, since the command already exists.

Right we can track it in an issue in the JupyterLab repo. Maybe this could even be released in a 4.6.x patch release if it's considered as a "bug fix".