matplotlib widgets fail to load

Nadie ha tomado este issue todavía.

## Describe the issue

Get a line like `[]` when trying to plot, and an 'empty' plot which seems to have a toolbar of button, but no content.

developer tools console has:
```
Failed to fetch ipywidgets through the "jupyter.widget.control" comm channel, fallback to fetching individual model state. Reason: Control comm was closed too early
_loadFromKernel @ manager-base.js:291
```

## Versions

```
3.10.8 (main, Nov 30 2022, 11:24:29) [GCC 10.2.1 20210110]
ipympl version: 0.9.2
Selected Jupyter core packages...
IPython : 8.7.0
ipykernel : 6.18.3
ipywidgets : 8.0.2
jupyter_client : 7.4.7
jupyter_core : 5.1.0
jupyter_server : 1.23.3
jupyterlab : 3.5.1
nbclient : 0.7.2
nbconvert : 7.2.5
nbformat : 5.7.0
notebook : 6.5.2
qtconsole : not installed
traitlets : 5.6.0
Known nbextensions:
config dir: /home/zlobko/.pyenv/versions/3.10.8/etc/jupyter/nbconfig
notebook section
jupyter-matplotlib/extension enabled
- Validating: OK
jupyter-js-widgets/extension enabled
- Validating: OK
JupyterLab v3.5.1
/home/zlobko/.pyenv/versions/3.10.8/share/jupyter/labextensions
jupyterlab_pygments v0.2.2 enabled OK (python, jupyterlab_pygments)
jupyter-matplotlib v0.11.2 enabled OK
@jupyter-widgets/jupyterlab-manager v5.0.3 enabled OK (python, jupyterlab_widgets)

Other labextensions (built into JupyterLab)
app dir: /home/zlobko/.pyenv/versions/3.10.8/share/jupyter/lab

The following source extensions are overshadowed by older prebuilt extensions:
@jupyter-widgets/jupyterlab-manager
```

FWIW: This is on debian/WSL2 (which was converted from WSL1).

Reproduce el gráfico vacío con las versiones indicadas de Python, ipympl, JupyterLab e ipywidgets y, a continuación, empieza por el fallo al cargar el widget en manager-base.js:291 y por las extensiones jupyter-matplotlib habilitadas. Se considera terminado cuando el widget de matplotlib se carga en JupyterLab y el contenido del gráfico y la barra de herramientas se muestran sin el error de canal de comunicación indicado.

Escrito por el modelo de indexación a partir del texto del issue.