Remove conversion of Matplotlib artifacts to Plotly objects for storage

When a Matplotlib figure is stored as an artifact to the Simvue server, it is converted to a Plotly artifact and stored that way (I assume so that it can be viewed within the UI, which is very useful!). However when it is pulled back from the server using the client, the figure is returned as a Plotly object, instead of the Matplotlib figure originally stored. Can the figure be converted back to Matplotlib before being returned, so that the user gets back the same artifact which they stored?

Commencez par le chemin client qui récupère les artefacts stockés et suivez la manière dont les figures Matplotlib sont sérialisées et reconstruites. Vérifiez la gestion existante de Matplotlib vers Plotly décrite dans l’issue et ajoutez une couverture ciblée des round-trips. Le travail est terminé lorsqu’une figure Matplotlib stockée sur Simvue est renvoyée en tant que figure Matplotlib, tandis que la récupération des artefacts Plotly existants continue de fonctionner.