chore: 隐藏校长寄语；修改新闻中心、校友故事banner

assets/aboutNavList.js

@@ -12,10 +12,10 @@ export default function(_this) {
       name: _this.$t('menu.aboutChild.news'),
       path: '/about/news'
     },
-    {
-      name: _this.$t('menu.aboutChild.msg'),
-      path: '/about/message'
-    },
+    // {
+    //   name: _this.$t('menu.aboutChild.msg'),
+    //   path: '/about/message'
+    // },
     {
       name: _this.$t('menu.aboutChild.openLesson'),
       path: '/about/lesson'

pages/about/news/index.vue

 <template>
   <app-frame :tabs="tabs">
-    <img src="https://webapp-pub.ezijing.com/www/pc/news/news.png" class="banner" />
+    <img src="https://webapp-pub.ezijing.com/www/pc/news/banner.jpg" class="banner" />
     <template #article>
       <article-list v-bind="listOptions"></article-list>
     </template>

pages/alumnus/story/index.vue

 <template>
   <div class="main_content">
-    <img src="https://webapp-pub.ezijing.com/www/pc/news/news.png" class="banner" />
+    <img src="https://webapp-pub.ezijing.com/www/pc/alumnus/banner.png" class="banner" />
     <article-list v-bind="listOptions"></article-list>
   </div>
 </template>