chore: rename all &cx to cx, make clipppy happy

notes/README.md

@@ -233,7 +233,7 @@ use hooks to define state and modify it from within listeners.
 
 ```rust, ignore
 fn app(cx: Scope) -> Element {
-    let name = use_state(&cx, || "world");
+    let name = use_state(cx, || "world");
 
     render!("hello {name}!")
 }
@@ -280,7 +280,7 @@ fn main() {
 }
 
 fn App(cx: Scope) -> Element {
-    let count = use_state(&cx, || 0);
+    let count = use_state(cx, || 0);
 
     cx.render(rsx!(
         div { "Count: {count}" }

notes/README/ZH_CN.md

@@ -54,7 +54,7 @@ Dioxus 是一个可移植的、高性能的、符合人体工程学的框架，
 
 ```rust
 fn app(cx: Scope) -> Element {
-    let mut count = use_state(&cx, || 0);
+    let mut count = use_state(cx, || 0);
 
     cx.render(rsx! {
         h1 { "High-Five counter: {count}" }

notes/SOLVEDPROBLEMS.md

@@ -406,8 +406,8 @@ enum Patch {
 ```
 
 ```rust
-let node_ref = use_node_ref(&cx);
-use_effect(&cx, || {
+let node_ref = use_node_ref(cx);
+use_effect(cx, || {
 
 }, []);
 div { ref: node_ref,