Duplicate package.json dependencies

[codedmonkey]

👋

I've been experimenting with creating my own Symfony UX-like bundle (this one). Although the Flex documentation is limited it's working great.

One problem I've been encountering is that on every update of Composer, Flex tries to add my bundle's autoimport libraries to the devDependencies section of the package.json. Awesome, of course, but in this case I already added it to the dependencies section myself.

My request is that Flex checks if the library is already defined under the dependencies section before it adds it to the devDependencies section. I can make a PR myself if it helps!

[stof]

this makes sense IMO. Contributions are welcome to fix this.