fix(reader): call setRouter(app) so book cards navigate

Author: DevBot

examples/deno-desktop-reader/app/reader.ts

@@ -1,8 +1,9 @@
 import { createApp } from "./spa-lite.ts";
-import { routes } from "./routes.ts";
+import { routes, setRouter } from "./routes.ts";
 
 export function bootReader() {
-  createApp(routes);
+  const app = createApp(routes);
+  setRouter(app);
 }
 
 bootReader();