fix typo

src/002-config/mousetrapConfig.js

@@ -29,7 +29,7 @@ App.UI.Hotkeys = (function() {
 	const bindings = {};
 
 	/**
-	 * To ensure we only record one at at time
+	 * To ensure we only record one at a time
 	 * @type {boolean}
 	 */
 	let recording = false;