Revert server configuration in its own file

api/server.js

@@ -0,0 +1,22 @@
+const express = require('express');
+const cors = require('cors');
+const helmet = require('helmet');
+require('dotenv').config();
+
+const accountsRoute = require('../api/routes/accountRoute');
+
+const server = express();
+
+server.use(express.json());
+server.use(cors());
+server.use(helmet());
+
+server.use('/api/accounts', accountsRoute);
+
+server.get('/', (req, res) =>
+	res
+		.status(200)
+		.send('<h2>Welcome to Meeting Planner Backend API service.</h2>'),
+);
+
+module.exports = server;