Advanced Node and Express needs to be updated

Hi guys, the Advanced Node and Express glitch project needs to be updated since MongoDB 3.x+ does not support anymore the access to database with db.collection directly from the mongo.connect() callback, but it receives client from the callback and db has to be declared like this:
const mongo = require('mongodb').MongoClient; mongo.connect(process.env.MONGO_URI, (err, client) => { var db = client.db('name-of-db');
The latter challenges have an old version of mongo in package.json and that doesn’t work anymore with new mongo db. You can pass the challenges but the project won’t work.

Thank you for helping make FCC better. Bugs can be reported as GitHub Issues. Whenever reporting a bug, please check first that there isn’t already an issue for it and provide as much detail as possible.

As for this issue, there is already a PR being QAed to fix.