Fix the router and stub out a number of crates to get compiling

packages/fullstack/examples/axum-auth/src/main.rs

@@ -74,9 +74,9 @@ fn main() {
     }
 }
 //
-fn app(cx: Scope) -> Element {
-    let user_name = use_state(cx, || "?".to_string());
-    let permissions = use_state(cx, || "?".to_string());
+fn app() -> Element {
+    let user_name = use_state(|| "?".to_string());
+    let permissions = use_state(|| "?".to_string());
 
     cx.render(rsx! {
         div {