1、右上角新增消息中心提示

2、消息中心新增连接点击打开对应的详情页面
3、页面样式调整，关联附件新增前端分页

src/views/filestatistic/index.vue

@@ -80,7 +80,7 @@
           </div>
           <div class="rt">
             <el-table v-loading="downLoading" :data="toolDownStatList">
-              <el-table-column type="index" label="序号" width="50" />
+              <el-table-column type="index" label="序号" width="50" align="center"/>
               <el-table-column label="文档编号" align="center" key="docCode" prop="docCode" />
               <el-table-column label="文档名称" align="center" key="docName" prop="docName"  :show-overflow-tooltip="true" />
               <el-table-column label="下载次数" align="center" key="docDownNum" prop="docDownNum" width="120" />