title: Change Subject and Content of WordPress Default Activation Email
body: <p>When a user registers on my site, they receive an email to activate their account, but this email is in english and I need to change its content.</p>
  
  <p>I've tried changing the default WordPress language but the emails still go out in english.</p>
  
  <p>How can I achieve this? Can I do it by adding some code on my functions.php? </p>
  
  <p>This is the email that I'm talking about,</p>
  
  <p><a href="https://i.stack.imgur.com/zCs8Q.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/zCs8Q.jpg" alt="enter image description here"></a></p>
  
  <p>Thanks.</p>