fix(angular): return error when name is missing from package.json (#10356)

Co-authored-by: Leosvel Pérez Espinosa <leosvel.perez.espinosa@gmail.com>

packages/angular/src/generators/ng-add/utilities/normalize-options.ts

@@ -35,8 +35,11 @@ export function normalizeOptions(
   if (!npmScope) {
     // use the name (scope if exists) in the root package.json
     const { name } = readJson(tree, 'package.json');
+
+    if (name) {
       npmScope = name.startsWith('@') ? name.split('/')[0].substring(1) : name;
     }
+  }
 
   return { ...options, npmScope };
 }