Update zh-cn.json and zh-hant.json (#1287)

Co-authored-by: Launch Lee <lee2487596275outlook.com>

Author: LaunchLee

src/lang/zh-cn.json

@@ -392,5 +392,5 @@
 	"notifications": "消息通知",
 	"no_unread_notifications": "没有未读消息",
 	"should_use_current_file_for_preview": "应使当前文件用于预览页面而非使用默认文件 (index.html)",
-	"fade fold widgets": "Fade Fold Widgets"
+	"fade fold widgets": "淡入淡出代码折叠按钮"
 }

src/lang/zh-hant.json

@@ -392,5 +392,5 @@
 	"notifications": "消息通知",
 	"no_unread_notifications": "沒有未讀消息",
 	"should_use_current_file_for_preview": "應使當前文件用於預覽頁面而非使用默認文件 (index.html)",
-	"fade fold widgets": "Fade Fold Widgets"
+	"fade fold widgets": "淡入淡出代碼折疊按鈕"
 }