Mapper/Objectives

* fix display of item objectives by making LocString JsonSerializable

includes/components/locstring.class.php

@@ -6,7 +6,7 @@ if (!defined('AOWOW_REVISION'))
     die('illegal access');
 
 
-class LocString
+class LocString implements \JsonSerializable
 {
     private \WeakMap $store;
 
@@ -24,6 +24,11 @@ class LocString
                 $this->store[$l] = (string)$callback($data[$key.'_loc'.$l->value] ?? '');
     }
 
+    public function jsonSerialize() : string
+    {
+        return $this->__toString();
+    }
+
     public function __toString() : string
     {
         if ($str = $this->store[Lang::getLocale()])