title: Where is the APK file created when building with Ionic 4 and Capacitor?
body: <p>I would like to get the APK file so I can install it manually rather than running through android studio.
  If I search in the android directory I can see a few and the most likely is:
  [project]\android\app\build\intermediates\instant-run-apk\debug\app-debug.apk</p>
  
  <p>However this doesn't install properly on my device.
  It works fine if I build and run through Android studio via Ionic using:
  ionic capacitor run android</p>
  
  <p><b>Do I need to do a signed production build for this to work?</b></p>