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

node_modules/remark-smartypants/dist/plugin.d.ts

@@ -0,0 +1,7 @@
+import { type Options } from "retext-smartypants";
+import type { Plugin } from "unified";
+/**
+ * remark plugin to implement SmartyPants.
+ */
+declare const remarkSmartypants: Plugin<[Options?]>;
+export default remarkSmartypants;