chore: 修改静态资源地址

pages/intro/apply.vue

 <template>
   <div>
-    <img src="https://webapp-pub.ezijing.com/project_online_pc/sub_plus/enroll-process-apply-banner.png" style="width:100%;margin-bottom:20px;" />
+    <img src="https://webapp-pub.ezijing.com/project/sbu-plus/enroll-process-apply-banner.png" style="width:100%;margin-bottom:20px;" />
     <ul class="content-mian_con">
       <li class="applyList_con">
         <div class="apply_name">学历</div>