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

node_modules/which-pm/index.d.ts

@@ -0,0 +1,29 @@
+declare function whichpm (pkgPath: string): Promise<whichpm.Result | null>
+
+declare namespace whichpm {
+  type Result = NPM | YARN | PNPM | BUN | Other
+
+  interface NPM {
+    readonly name: 'npm'
+  }
+
+  interface YARN {
+    readonly name: 'yarn'
+  }
+
+  interface PNPM {
+    readonly name: 'pnpm'
+    readonly version: string
+  }
+
+  interface BUN {
+    readonly name: 'bun'
+  }
+
+  interface Other {
+    readonly name: string
+    readonly version?: string
+  }
+}
+
+export = whichpm