New translations client.en.yml (Chinese Simplified)

config/locales/client.zh.yml

@@ -1,4 +1,4 @@
-zh-TW:
+zh-CN:
   js:
     wizard:
       complete_custom: "Complete the {{name}}"
@@ -179,6 +179,7 @@ zh-TW:
           property: "Property"
           prefill: "Prefill"
           content: "Content"
+          tag_groups: "Tag Groups"
           date_time_format:
             label: "Format"
             instructions: "<a href='https://momentjs.com/docs/#/displaying/format/' target='_blank'>Moment.js format</a>"