Removed unnecessary dereference in Store::find

Prefer no dereference when it is not needed.
`todo` has type `&&Item`. Argument needs to be `&Item`, but this is converted via deref coercion.

examples/todomvc/src/store.rs

@@ -85,7 +85,7 @@ impl Store {
         Some(
             self.data
                 .iter()
-                .filter(|todo| query.matches(*todo))
+                .filter(|todo| query.matches(todo))
                 .collect(),
         )
     }