Add space between rsx and exclamation point (#2956)

packages/web/examples/hydrate.rs

@@ -12,7 +12,7 @@ fn app() -> Element {
             "asd"
             Bapp {}
         }
-        {(0..10).map(|f| rsx!{
+        {(0..10).map(|f| rsx! {
             div {
                 "thing {f}"
             }