made updates to load envs and streamline pg pool to cut down on connections (#15)

Reviewed-on: #15
Co-authored-by: Joseph Nelson <joseph.nelson4456@gmail.com>
Co-committed-by: Joseph Nelson <joseph.nelson4456@gmail.com>

src/routes/sets/index.js

@@ -1,13 +1,9 @@
 import express from 'express'
-import { Pool } from 'pg'
-import { database } from '../../config/index.js'
+import { pool } from '../../config/index.js'
 import { check, validationResult } from 'express-validator'
 
 const router = express.Router()
 
-// Create a connection pool to the database
-const pool = new Pool(database)
-
 // Get all sets
 router.get('/', async (req, res) => {
 	try {