Turbopack: remap next/head on client in App Pages (vercel#55419)

### What?

Remaps `next/head` to `next/dist/client/components/noop-head` on the client inside an App Page.

### Why?

Because webpack bundles do it.

### How?

We were just missing an import remap. 🤦 

Closes WEB-1573

packages/next-swc/crates/next-core/src/next_import_map.rs

@@ -109,6 +109,10 @@ pub async fn get_next_client_import_map(
                 "react-server-dom-webpack/",
                 request_to_import_mapping(app_dir, "next/dist/compiled/react-server-dom-webpack/*"),
             );
+            import_map.insert_exact_alias(
+                "next/head",
+                request_to_import_mapping(project_path, "next/dist/client/components/noop-head"),
+            );
             import_map.insert_exact_alias(
                 "next/dynamic",
                 request_to_import_mapping(project_path, "next/dist/shared/lib/app-dynamic"),