title: How to set default language in multi language Django project
body: <p>my settings :</p>
  <pre><code>LANGUAGE_CODE = 'fa'
  
  TIME_ZONE = 'Asia/Tehran'
  
  USE_I18N = True
  
  USE_L10N = True
  
  USE_TZ = True
  
  # Languages
  
  LANGUAGES = (
      ('fa', _('Persian')),
      ('en', _('English')),
      ('ar', _('Arabic')),
  )
  
  LOCALE_PATHS = [
      BASE_DIR / 'locale/',
  ]
  </code></pre>
  <p>i want at the beginning when server get start default language for everyone be &quot;fa&quot; but it's still &quot;en&quot;
  how can i change that ?
  everything about multi language and translation works well</p>