Move menu to islands

fresh.gen.ts

@@ -5,13 +5,16 @@
 import config from "./deno.json" assert { type: "json" };
 import * as $0 from "./routes/api/task/list.ts";
 import * as $1 from "./routes/index.tsx";
+import * as $$0 from "./islands/Menu.tsx";
 
 const manifest = {
     routes: {
         "./routes/api/task/list.ts": $0,
         "./routes/index.tsx": $1,
     },
-    islands: {},
+    islands: {
+        "./islands/Menu.tsx": $$0,
+    },
     baseUrl: import.meta.url,
     config,
 };