Pull out asset handler refactor from https://github.com/DioxusLabs/dioxus/pull/2972 (#3000)

packages/desktop/src/hooks.rs

@@ -5,7 +5,7 @@ use crate::{
     ShortcutHandle, ShortcutRegistryError, WryEventHandler,
 };
 use dioxus_core::{
-    prelude::{consume_context, current_scope_id, use_hook_with_cleanup, RuntimeGuard},
+    prelude::{consume_context, use_hook_with_cleanup, RuntimeGuard},
     use_hook, Runtime,
 };
 
@@ -69,11 +69,9 @@ pub fn use_asset_handler(
 
     use_hook_with_cleanup(
         || {
-            crate::window().asset_handlers.register_handler(
-                name.to_string(),
-                Box::new(move |asset, responder| cb((asset, responder))),
-                current_scope_id().unwrap(),
-            );
+            crate::window()
+                .asset_handlers
+                .register_handler(name.to_string(), cb);
 
             Rc::new(name.to_string())
         },