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

node_modules/devlop/lib/default.js

@@ -0,0 +1,9 @@
+export function deprecate(fn) {
+  return fn
+}
+
+export function equal() {}
+
+export function ok() {}
+
+export function unreachable() {}