Set android:name in AndroidManifest.xml

This commit explicitly sets the `android:name` attribute to `MyApp` in the `<application>` tag of the `AndroidManifest.xml` file.

Author: eby-dev

app/src/main/AndroidManifest.xml

@@ -14,6 +14,7 @@
     <uses-feature android:name="android.hardware.camera.flash" />
 
     <application
+        android:name="MyApp"
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher_qrbarcode"
         android:label="@string/app_name"