try fix: update webpack, add usescleartexttraffic

Try to use suggestion at NativeScript/nativescript-cli/issues/3146#issuecomment-457689386.
no luck

Author: yringler

App_Resources/Android/src/main/AndroidManifest.xml

@@ -23,7 +23,9 @@
 		android:allowBackup="true"
 		android:icon="@drawable/icon"
 		android:label="@string/app_name"
-		android:theme="@style/AppTheme">
+		android:theme="@style/AppTheme"
+		android:usesCleartextTraffic="true"
+		>
 
 		<activity
 			android:name="com.tns.NativeScriptActivity"