perf: cut cold route compilation and unblock preview images (#6441)

packages/request-handler/src/lib/widget-request-handler.ts

@@ -6,9 +6,7 @@ interface Options<TData, TInput extends Record<string, unknown>> {
 
 export const createWidgetRequestHandler = <TData, TInput extends Record<string, unknown>>(
   options: Options<TData, TInput>,
-) => ({
-  handler: (widgetOptions: TInput) =>
-    createRequestHandler<TData, TInput>({
-      requestAsync: options.requestAsync,
-    }).handler(widgetOptions),
-});
+) => {
+  const inner = createRequestHandler<TData, TInput>({ requestAsync: options.requestAsync });
+  return inner;
+};