TypeScript projects are getting JavaScript webpack.config

[DimitarTachev]

Environment

• CLI: next
• nativescript-dev-webpack: ~0.18.0

Describe the bug
We don't have the typescript dependency hardcoded in our templates anymore and we depend on the nativescript-dev-typescript postinstall script to generate it.

It seems that npm is executing the postintalls script in alphabetical order and the nativescript-dev-typescript plugin is generating the typescript dependency before the postintall script of nativescript-dev-webpack. In this way, everything is working as expected.

However, when the NativeScript CLI is used with yarn instead of npm, the postinstall scripts are run in parallell and the nativescript-dev-webpack plugin is copying the javascript webpack.config instead of the typescript one because the typescript dependency is still missing.

To Reproduce

1. npm i nativescript@next -g
2. tns package-manager set yarn
3. tns create typescriptBug --ts (the webpack plugin postinstall will copy the JavaScript templated instead of the TypeScript one)
4. tns run --bundle

Expected behavior
The app should run properly instead of getting "ERROR in Entry module not found: Error: Can't resolve './app.js' in '/typescriptBug/app'"