Fix test story to avoid Vitest transformation issue with inline loader

The loader function needs to be defined separately to prevent Vitest's
wrapDynamicImport from stripping the .then() callback when the loader
is defined inline in dynamic() with ssr: false.

Co-authored-by: valentinpalkovic <[email protected]>

Author: Copilot

example/src/app/components/DynamicImport/DynamicImport.stories.tsx

@@ -8,10 +8,9 @@ const DynamicComponentNoSSR = dynamic(() => import("./DynamicImport"), {
 });
 
 // Test case that matches the user's issue pattern: using .then((mod) => mod.Component) with ssr: false
-const DynamicNamedComponentNoSSR = dynamic(
-  () => import("./NamedExport").then((mod) => mod.NamedComponent),
-  { ssr: false },
-);
+const namedExportLoader = () =>
+  import("./NamedExport").then((mod) => mod.NamedComponent);
+const DynamicNamedComponentNoSSR = dynamic(namedExportLoader, { ssr: false });
 
 // Test without ssr: false to check if issue is SSR-specific
 const DynamicNamedComponent = dynamic(() =>