fix: 🐛 include src folder

sourcemaps will refer to this folder

Author: nutgaard

.github/workflows/publish-ghpr.yaml

@@ -12,7 +12,7 @@ env:
   CI: true
 jobs:
   test-build-publish:
-    name: Test and build
+    name: Publish package to GPR
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v1

.npmignore

@@ -2,7 +2,6 @@
 .idea/
 coverage/
 node_modules/
-src/
 test/
 
 .gitignore