fix: missing configuration

Author: kargnas

config/ai-translator.php

@@ -3,6 +3,8 @@
 return [
     'source_locale' => 'en',
     'source_directory' => 'lang',
+    // Translate strings in a batch. The higher, the cheaper.
+    'chunk_size' => 10,
 
     'ai' => [
 //        'provider' => 'anthropic',