Added GraphiQL disable.

src/web/server.js

@@ -72,6 +72,7 @@ async function initServer() {
 	const store = new KnexSessionStore({ knex });
 
 	app.set('view engine', 'ejs');
+    app.disable('x-powered-by');
 
 	router.use('/media', express.static(config.media.path));
 	router.use(express.static('public'));