title: Flutter how to get firebase dynamic link if app is already running?
body: <p>I receive a firebase dynamic link in initState. </p>
  
  <p>This works great if the app is completely off. But if the app was running before clicking the link, initState is not called again, thus the dynamiclink is not processed.</p>
  
  <p><strong>Should I try to process the firebase dynamic link through WidgetsBindingObserver (for a similar effect to onResume in Android)?</strong> If not, what would be the proper way?</p>