title: NestJS - proper way to copy static (non-imported) files to dist folder
body: <p>I'm building an app that uses google cloud apis (e.g. Google Cloud Storage). In order to authenticate the app with the api I need to pass the path of the <code>keyfile.json</code> file that contains auth credentials to the GCloud Api initialization script.
  I.e. </p>
  
  <pre><code>const storage = new Storage({
        keyFilename: path.join(__dirname, '../../keyfile.json'),
  });
  </code></pre>
  
  <p>I put the <code>keyfile.json</code> into the NestJS <code>src</code> folder but when I build the app, the file is not copied to <code>dist</code>.</p>
  
  <p>What would be recommended way to handle static files copying to dist in NestJS?</p>