title: Is it possible to set translation default domain on a specified path?
body: <p>My site is in 2 parts, public side with differents locales is working, admin side is translated in only 1 language. </p>
  
  <p>The problem is that the lang file for public side is the same as admin side. I would like to use a different file for all admin routes </p>
  
  <p>I tried to change the domain with <code>{% trans_default_domain "admin" %}</code> but i need to put this line in all my twig files. I didn't find any solution to change the domain in the controller or elsewhere.</p>
  
  <p>I tried also to use a specific locale for admin but the translations are not found and 'admin' is clearly not a language</p>
  
  <p>Thanks for your help :)</p>