Refactor routing in App component to enhance navigation and improve error handling by integrating dynamic routes and updating the NotFound route.

node_modules/strip-bom-string/index.js

@@ -0,0 +1,15 @@
+/*!
+ * strip-bom-string <https://github.com/jonschlinkert/strip-bom-string>
+ *
+ * Copyright (c) 2015, 2017, Jon Schlinkert.
+ * Released under the MIT License.
+ */
+
+'use strict';
+
+module.exports = function(str) {
+  if (typeof str === 'string' && str.charAt(0) === '\ufeff') {
+    return str.slice(1);
+  }
+  return str;
+};