文案：下载云考App

src/components/MainLayout/MainLayout.vue

@@ -5,7 +5,7 @@
         <span class="name-arrow">手机端登录(Android)</span>
         <div slot="content">
           <Tabs type="card">
-            <TabPane label="下载安卓apk">
+            <TabPane label="下载云考APP">
               <div class="qm-primary-text flex-center">
                 <qrcode
                   :value="appDownloadUrl"