Improve prop lazy evaluation

Author: reinink

src/Response.php

@@ -49,13 +49,10 @@ public function withViewData($key, $value = null)
     public function toResponse($request)
     {
         $only = array_filter(explode(',', $request->header('X-Inertia-Only')));
-        $props = $only ? array_only($this->props, $only) : $this->props;
 
-        array_walk_recursive($props, function (&$prop) {
-            if ($prop instanceof Closure) {
-                $prop = App::call($prop);
-            }
-        });
+        $props = array_map(function ($prop) {
+            return $prop instanceof Closure ? App::call($prop) : $prop;
+        }, $only ? array_only($this->props, $only) : $this->props);
 
         $page = [
             'component' => $this->component,