Fix cargo check on examples

examples/read_size.rs

@@ -4,9 +4,10 @@ use std::rc::Rc;
 use dioxus::{html::geometry::euclid::Rect, prelude::*};
 
 fn main() {
-    LaunchBuilder::desktop().with_cfg(
-        dioxus::desktop::Config::default().with_custom_head(
-            r#"
+    LaunchBuilder::desktop()
+        .with_cfg(
+            dioxus::desktop::Config::default().with_custom_head(
+                r#"
 <style type="text/css">
     html, body {
         height: 100%;
@@ -19,16 +20,17 @@ fn main() {
     }
 </style>
 "#
-            .to_owned(),
-        ),
-    );
+                .to_owned(),
+            ),
+        )
+        .launch(app);
 }
 
 fn app() -> Element {
     let mut div_element = use_signal(|| None as Option<Rc<MountedData>>);
     let mut dimensions = use_signal(Rect::zero);
 
-    let mut read_dims = move |_| async move {
+    let read_dims = move |_| async move {
         let read = div_element.read();
         let client_rect = read.as_ref().map(|el| el.get_client_rect());
         if let Some(client_rect) = client_rect {