title: How to change Ionic Back button dynamically in Ionic 5
body: <p>I'd like to change back button dynamically in app having localization feature in Ionic 5.<br>
  Of course, I can do it <strong>config.set</strong> function in Ionic 3 but it is deprecated in Ionic 5.<br>
  I want the same function I can use that in a page like profile setting page.</p>