adjusted test

fixed issues with routes

adjusted portfolio to load items by user id

adjusted tests

added user id to serialize method

changed watchlist to load items by user id

added jwtAuth to watchlist and portfolio routes

updated dependencies

changed min. password characters

Merge branch 'feature/authentication' of https://github.com/jinesh701/bittrack-server into feature/authentication

added require for dotenv

Delete watchlist.js

Delete portfolio.js

Delete watchlist.js

Delete portfolio.js