livesync doesn't work in ReactNativescript app

[miroslavaivanova]

Environment
Provide version numbers for the following components (information can be retrieved by running tns info in your project folder or by inspecting the package.json of the project):

• CLI: 6.2.0

Describe the bug
Livesync doesn't work in ReactNativeScript app

To Reproduce

1. open https://play.nativescript.org and create ReactNativeScript app
2. download it and run with tns preview
3. make some changes in AppContainer.tsx file and you will see that nothing happens

Expected behavior
Livesync should work