fix(android): updated android manifest in angular demo (#9)

Author: alexziskind1

angular-tutorial/App_Resources/Android/src/main/AndroidManifest.xml

@@ -20,13 +20,17 @@
 		android:allowBackup="true"
 		android:icon="@mipmap/ic_launcher"
 		android:label="@string/app_name"
-		android:theme="@style/AppTheme">
+		android:theme="@style/AppTheme"
+		android:hardwareAccelerated="true">
 
 		<activity
 			android:name="com.tns.NativeScriptActivity"
 			android:label="@string/title_activity_kimera"
 			android:configChanges="keyboard|keyboardHidden|orientation|screenSize|smallestScreenSize|screenLayout|locale|uiMode"
-			android:theme="@style/LaunchScreenTheme">
+			android:theme="@style/LaunchScreenTheme"
+			android:hardwareAccelerated="true"
+      		android:launchMode="singleTask"
+			android:exported="true">
 
 			<meta-data android:name="SET_THEME_ON_LAUNCH" android:resource="@style/AppTheme" />