:gear: making the knew config similar to the backend server config

backend/knexfile.js

 require('dotenv').config()
 const fs = require('fs')
 
-const isLocal = process.env.USE_LOCAL_DB == 'true' ? true : false
+const useLocalDb = () => process.env.USE_LOCAL_DB == 'true'
 
 const local = {
     host: process.env.DB_HOST,
 module.exports = {
     development: {
         client: process.env.DB_TYPE,
-        connection: isLocal ? local : pscale,
+        connection: useLocalDb() ? local : pscale,
         pool: {
             min: 2,
             max: 10,
         seeds: {
             directory: './db/seeds',
         },
-        ssl: isLocal
+        ssl: useLocalDb()
             ? {}
             : {
                   ca: fs.readFileSync('/etc/ssl/certs/ca-certificates.crt'),