[WIP] Enable private npm registries

[hulutter]

Proposed changes

First draft of enabling private npm registries and internal package cache.

Types of changes

What types of changes does your code introduce to Lowcoder?
Put an x in the boxes that apply.

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices apply)

[netlify]

👷 Deploy request for lowcoder-test pending review.

Visit the deploys page to approve it

Name	Link
🔨 Latest commit	9857ef2