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

node_modules/astro/dist/vite-plugin-astro-server/route.d.ts

@@ -0,0 +1,24 @@
+import type http from 'node:http';
+import type { ComponentInstance, ManifestData, RouteData } from '../@types/astro.js';
+import type { DevPipeline } from './pipeline.js';
+type AsyncReturnType<T extends (...args: any) => Promise<any>> = T extends (...args: any) => Promise<infer R> ? R : any;
+export interface MatchedRoute {
+    route: RouteData;
+    filePath: URL;
+    resolvedPathname: string;
+    preloadedComponent: ComponentInstance;
+    mod: ComponentInstance;
+}
+export declare function matchRoute(pathname: string, manifestData: ManifestData, pipeline: DevPipeline): Promise<MatchedRoute | undefined>;
+type HandleRoute = {
+    matchedRoute: AsyncReturnType<typeof matchRoute>;
+    url: URL;
+    pathname: string;
+    body: ArrayBuffer | undefined;
+    manifestData: ManifestData;
+    incomingRequest: http.IncomingMessage;
+    incomingResponse: http.ServerResponse;
+    pipeline: DevPipeline;
+};
+export declare function handleRoute({ matchedRoute, url, pathname, body, pipeline, manifestData, incomingRequest, incomingResponse, }: HandleRoute): Promise<void>;
+export {};