Code cleanup branch

src/database/models/token.js

-const validator = require('validator')
 const mongoose = require('mongoose')
 const bcrypt = require('bcryptjs')
 const jwt = require('jsonwebtoken')

src/endpoints/user.js

 const bcrypt = require("bcryptjs/dist/bcrypt")
-const { Router } = require("express")
 const User = require("../database/models/user")
 
 const getUsers = async (req, res, next) => {
         const allUsers = await User.find({})
         return res.status(200).send(allUsers)
     } catch (e) {
-        // TODO: Jel i ovde treba next(e)?
         next(e)
     }
 }

src/middleware/auth.js

     try {
         const token = req.header('Authorization').replace('Bearer ', '')
         if(!token) {
-            return res.status(404).send('Invalid token!')
+            return res.status(401).send('Invalid token!')
         }
 
         const findUser = await User.findOne({ 'tokens.token': token })