Update to webpack 5 Asset Modules

[jtpio]

Problem

Currently the @voila-dashboards/voila package depends on Webpack 5:

voila/packages/voila/package.json

Line 66 in c60b6c0

"webpack": "^5.24.1",

In Webpack 5 most of the url-loader, file-loader and others have been deprecated in favor of the Asset Modules: https://webpack.js.org/guides/asset-modules/

Proposed Solution

We should check if Voila could drop some of the dependencies on the old loaders:

voila/packages/voila/package.json

Line 52 in c60b6c0

"file-loader": "^6.2.0",

voila/packages/voila/package.json

Line 64 in c60b6c0

"url-loader": "^4.1.1",

Additional context

For reference JupyterLab implemented this change in jupyterlab/jupyterlab#12350

[jtpio]

This might also be relevant for #1304

[maartenbreddels]

@mariobuikhuizen is this important for ipyvuetify ? since you had some issues with the fonts?

[martinRenou]

This could probably go into a 0.5.1 release? Should we remove it from the 0.5.0 milestone?

[jtpio]

Probably the only impact would be for extension authors that expect these loaders to be there, which is why it would have been nice to clean that up for the next major release.

Although in the case of Voila the impact would probably be limited as widgets and mime renderers usually don't care about these details.

[trungleduc]

👍 on delivering this change on 0.5.0