Downloaded ng and ts projects contain compiled .js files

[Natalia-Hristova]

Tell us about the problem

When download ts or ng projects compiled js files are downloaded as well

Please provide the following information shown in the devices tab in the playground:

• Preview app version 1.23.0

Please tell us how to recreate the issue with as much detail as possible.

1. Create ts/ng project
2. Download it
3. Check files for