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

docs/guide/examples/meme_editor.rs

@@ -18,7 +18,7 @@ fn MemeEditor(cx: Scope) -> Element {
         width: fit-content;
     ";
 
-    let caption = use_state(&cx, || "me waiting for my rust code to compile".to_string());
+    let caption = use_state(cx, || "me waiting for my rust code to compile".to_string());
 
     cx.render(rsx! {
         div {