feat: delete lock file

* The existence of a package-lock.json
  prevents npm i from installing the latest
  pre-release version

Author: wagnermaciel

src/app/shared/stack-blitz/stack-blitz-writer.ts

@@ -36,7 +36,6 @@ export const TEMPLATE_FILES = [
   'angular.json',
   'karma.conf.js',
   'package.json',
-  'package-lock.json',
   'tsconfig.app.json',
   'tsconfig.json',
   'tsconfig.spec.json',