message: Improved setup
diff: @@ -578,7 +578,7 @@ impl CrateData {
  fn npm_data(
  &self,
  scope: &Option<String>,
  - include_commonjs_shim: bool,
  + add_js_bg_to_package_json: bool,
  disable_dts: bool,
  out_dir: &Path,
  ) -> NpmData {
  @@ -588,10 +588,10 @@ impl CrateData {
  let mut files = vec![wasm_file];
  files.push(js_file.clone());
  - // if include_commonjs_shim {
  + if add_js_bg_to_package_json {
  let js_bg_file = format!("{}_bg.js", name_prefix);
  files.push(js_bg_file);
  - // }
  + }
  let pkg = &self.data.packages[self.current_idx];
  let npm_name = match scope {
  @@ -671,7 +671,7 @@ impl CrateData {
  disable_dts: bool,
  out_dir: &Path,
  ) -> NpmPackage {
  - let data = self.npm_data(scope, false, disable_dts, out_dir);
  + let data = self.npm_data(scope, true, disable_dts, out_dir);
  let pkg = &self.data.packages[self.current_idx];
  self.check_optional_fields();
  