update default_widget field i18n

config/locales/en.yml

@@ -13,7 +13,7 @@ en:
     create_bulletin_category_success: Create Category Successfully
     date: Announcement Date
     default_widget:
-      bulletin_category_with_title: Bulletin Category with Title
+      bulletin_category_with_title: Category
       postdate: Post Date
       subtitle: Subtitle
       title: Title

config/locales/zh_tw.yml

@@ -13,7 +13,7 @@ zh_tw:
     create_bulletin_category_success: 建立類別成功
     date: 起迄日期
     default_widget:
-      bulletin_category_with_title: 公告類別及標題
+      bulletin_category_with_title: 類別
       postdate: 張貼日期
       subtitle: 副標題
       title: 標題
@@ -38,4 +38,4 @@ zh_tw:
       bulletins_and_web_links: 分眾頁籤
       index: 索引
       search: 搜尋
-    more: 更多+
+    more: 更多+