fix: filtering for buttons

examples/form.rs

@@ -11,15 +11,17 @@ fn main() {
 
 fn app(cx: Scope) -> Element {
     cx.render(rsx! {
-        div {
-            h1 { "Form" }
-            form {
-                onsubmit: move |ev| println!("Submitted {:?}", ev.values),
-                oninput: move |ev| println!("Input {:?}", ev.values),
-                input { r#type: "text", name: "username" }
-                input { r#type: "text", name: "full-name" }
-                input { r#type: "password", name: "password" }
-                button { "Submit the form" }
+        Router {
+            div {
+                h1 { "Form" }
+                form {
+                    onsubmit: move |ev| println!("Submitted {:?}", ev.values),
+                    oninput: move |ev| println!("Input {:?}", ev.values),
+                    input { r#type: "text", name: "username" }
+                    input { r#type: "text", name: "full-name" }
+                    input { r#type: "password", name: "password" }
+                    button { r#type: "submit", value: "Submit", "Submit the form" }
+                }
             }
         }
     })