Revert "fix(package): don't omit src"

This reverts commit 8ffff71.

Author: MiroslavDionisiev

.npmignore

@@ -6,9 +6,7 @@
 npm-*
 
 # Double copies of all the static assets and tutorial gifs
-# We need these files for deep webpack builds
-# TODO: see if there's a good way to dedupe larger files
-#/src
+/src
 
 # Testing
 /.nyc_output