Less clumsy configuration for desktop and mobile (#553)

* chore: dont use prebuilt builder pattern for configuring desktop

* chore: use regular config pattern for web

* Chore: update docs too

* chore: clean up some warnings

docs/guide/examples/hooks_use_ref.rs

@@ -7,7 +7,7 @@ fn main() {
 
 // ANCHOR: component
 fn App(cx: Scope) -> Element {
-    let list = use_ref(&cx, || Vec::new());
+    let list = use_ref(&cx, Vec::new);
     let list_formatted = format!("{:?}", *list.read());
 
     cx.render(rsx!(