fix tests

packages/signals/src/map.rs

@@ -15,7 +15,7 @@ pub struct MappedSignal<U: 'static + ?Sized> {
 
 impl MappedSignal<()> {
     /// Create a new mapped signal.
-    pub fn new<T, S: Storage<SignalData<T>>, U>(
+    pub fn new<T, S: Storage<SignalData<T>>, U: ?Sized>(
         signal: Signal<T, S>,
         mapping: impl Fn(&T) -> &U + 'static,
     ) -> MappedSignal<

packages/signals/tests/map.rs

@@ -18,10 +18,7 @@ fn create_signals_global() {
         let signal = create_without_cx();
         let mapped = MappedSignal::new(signal, |v| v.as_bytes());
 
-        render! {
-            "{signal:?}"
-            "{mapped:?}"
-        }
+        render! { "{signal:?}", "{mapped:?}" }
     }
 
     let _edits = dom.rebuild().santize();