MB 70: Temporarily disable the language notification
requested to merge pierov/mullvad-browser:70-mb-disable-lang-notification into privacy-browser-102.8.0esr-12.0-1
Since we're enabling en-US only, we should not show the language notification on privacy browser.
Being a default preference, when we remove it, users should fallback to the code default (false) and see the notification again.
Closes #70 (closed)