add "Untagged" to filter addressbook peers without tags (#10063)

Signed-off-by: 21pages <sunboeasy@gmail.com>

src/lang/cn.rs

@@ -654,5 +654,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("Upload files", "上传文件"),
         ("Clipboard is synchronized", "剪贴板已同步"),
         ("Update client clipboard", "更新客户端的粘贴板"),
+        ("Untagged", "无标签"),
     ].iter().cloned().collect();
 }