fix: 🐛 source maps

[samuelOsborne]

Description

include "src" folder in the package to resolve source-map-loader referencing issue

Type of change

• [x] Patch: Bug (non-breaking change which fixes an issue)
• [ ] Minor: New feature (non-breaking change which adds functionality)
• [ ] Major: Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

• [x] This is something we need to do.