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

examples/fermi.rs

@@ -9,9 +9,9 @@ fn main() {
 
 static NAME: Atom<String> = Atom(|_| "world".to_string());
 
-fn app(cx: Scope) -> Element {
+fn app() -> Element {
     use_init_atom_root(cx);
-    let name = use_read(cx, &NAME);
+    let name = use_read(&NAME);
 
     cx.render(rsx! {
         div { "hello {name}!" }
@@ -20,8 +20,8 @@ fn app(cx: Scope) -> Element {
     })
 }
 
-fn Child(cx: Scope) -> Element {
-    let set_name = use_set(cx, &NAME);
+fn Child() -> Element {
+    let set_name = use_set(&NAME);
 
     cx.render(rsx! {
         button {
@@ -33,8 +33,8 @@ fn Child(cx: Scope) -> Element {
 
 static NAMES: AtomRef<Vec<String>> = AtomRef(|_| vec!["world".to_string()]);
 
-fn ChildWithRef(cx: Scope) -> Element {
-    let names = use_atom_ref(cx, &NAMES);
+fn ChildWithRef() -> Element {
+    let names = use_atom_ref(&NAMES);
 
     cx.render(rsx! {
         div {