Update _files content with scrips command

[geromegrignon]

Is your feature request related to a problem?

I'm creating a NgRx (Angular state management library) and the first step is to add the library with the ng add @ngrx/store@latest. It adds the dependency in package.json and updates some files.

I added all these files in the _files folder as the student task is to run the script and sees how it affect the project.
However even if the command succeeds, the files are not updated.

Describe the solution you'd like.

_files content should be updated from terminal action.

Describe alternatives you've considered.

No alternative

Additional context

No response

[GaetanRdn]

The solution for this problem could be the same for #204 in a first time.