Delete the js/package-lock.json file (#49)

* Delete package-lock.json

Let students generate their own lock files with latest package versions. This improves security.

* Prevent package-lock commits across the whole repo

Author: brookr

.gitignore

@@ -52,6 +52,8 @@ npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
 
+**/package-lock.json
+
 # Runtime data
 pids
 *.pid