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/runtime/server/endpoint.d.ts

@@ -0,0 +1,4 @@
+import type { APIContext, EndpointHandler } from '../../@types/astro.js';
+import type { Logger } from '../../core/logger/core.js';
+/** Renders an endpoint request to completion, returning the body. */
+export declare function renderEndpoint(mod: EndpointHandler, context: APIContext, ssr: boolean, logger: Logger): Promise<Response>;