bug: `ionic capacitor run android --livereload` is not rebuilding the app

_Original issue by @WesleyGoncalves on [2019-08-19T02:04:10Z](https://github.com/ionic-team/ionic/issues/19130)_

The app is not being updated in the Android device after I make changes to it. The live reload is not working.

The app only gets updated if I run `ng build`, then `ionic capacitor copy android` or `ionic capacitor run android -l`, and then run the app in Android Studio.

Reproduce the issue with `ionic capacitor run android --livereload`, then compare the behavior with `ng build`, `ionic capacitor copy android`, and launching the app in Android Studio. Trace the `ionic capacitor run android` entry point and its live-reload workflow; done means Android updates after app changes without the manual build and copy steps.

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