Fix fullstack axum integration docs (#3263)

* Fix broken fullstack doc tests

* include all features in doc test

* fix clippy

packages/fullstack/docs/request_origin.md

@@ -3,13 +3,16 @@ This method interacts with information from the current request. The request may
 1. The initial SSR render if this method called from a [`Component`](dioxus_lib::prelude::component) or a [`server`](crate::prelude::server) function that is called during the initial render
 
 ```rust
+# use dioxus::prelude::*;
 #[component]
 fn PrintHtmlRequestInfo() -> Element {
     // The server context only exists on the server, so we need to put it behind a server_only! config
     server_only! {
         // Since we are calling this from a component, the server context that is returned will be from
         // the html request for ssr rendering
-        println!("headers are {:?}", server_context().request_parts().headers);
+        let context = server_context();
+        let request_parts = context.request_parts();
+        println!("headers are {:?}", request_parts.headers);
     }
     rsx! {}
 }
@@ -18,11 +21,14 @@ fn PrintHtmlRequestInfo() -> Element {
 2. A request to a [`server`](crate::prelude::server) function called directly from the client (either on desktop/mobile or on the web frontend after the initial render)
 
 ```rust
+# use dioxus::prelude::*;
 #[server]
 async fn read_headers() -> Result<(), ServerFnError> {
     // Since we are calling this from a server function, the server context that is may be from the
     // initial request or a request from the client
-    println!("headers are {:?}", server_context().request_parts().headers);
+    let context = server_context();
+    let request_parts = context.request_parts();
+    println!("headers are {:?}", request_parts.headers);
     Ok(())
 }
 
@@ -32,7 +38,9 @@ fn CallServerFunction() -> Element {
         button {
             // If you click the button, the server function will be called and the server context will be
             // from the client request
-            onclick: move |_| read_headers().await,
+            onclick: move |_| async {
+                _ = read_headers().await
+            },
             "Call server function"
         }
     }