headlesscms-import-export does not support singularApiName and pluralApiName fields

[JBarnden]

When trying to import or transfer content models, the following error is raised:
Field "singularApiName" of required type "String!" was not provided

This can be fixed with the following tweak:

// Create the model
  const model = pick(modelsToImport[i], [
      "name",
      "modelId",
      "group",
      "description",
      "singularApiName",
      "pluralApiName",
  ]);

I have a branch with a fix ready if you'd be happy for me to open a PR.

Cheers