change localhost to 127.0.0.1

node v16+ better utilizes the address 127.0.01 rather than localhost, at least on MacOS while still working for Windows.

server/db.js

@@ -10,7 +10,7 @@ const Mongoose = require('mongoose');
 const getMongoDBURL = (config)=>{
 	return config.get('mongodb_uri') ||
            config.get('mongolab_uri') ||
-           'mongodb://localhost/homebrewery';
+		   'mongodb://127.0.0.1/homebrewery';  // changed from mongodb://localhost/homebrewery to accommodate versions 16+ of node.
 };
 
 const handleConnectionError = (error)=>{