minor: better wp remote executor hooks

wp-content/themes/moonshine/server/graphql/wp-hooks.ts

@@ -1,11 +1,10 @@
+import { defu } from "defu";
+
 export default defineRemoteExecutorHooks({
   onRequest(request) {
-    if (request.context.authToken) {
+    // Attach the Authorization header if an authToken is present in the context
-      request.extensions ??= {};
+    if (request.context?.authToken) {
-      request.extensions.headers = {
+      request.extensions = defu(request.extensions, { headers: { Authorization: `Bearer ${request.context.authToken}` } });
-        ...request.extensions.headers,
-        Authorization: `Bearer ${request.context.authToken}`,
-      };
     }
   },
 });