[AssetMapper] Explain detailed requirements for NPM packages #19558
Description
https://symfony.com/doc/current/frontend/asset_mapper.html#importing-3rd-party-javascript-packages says:
This command can be used to add any npm package
But there seems to be some prerequisites which aren't met by all packages - see tofsjonas/sortable#68 for an example. So what is required for this to work? And what can people tell the JS package maintainer in case it doesn't work?