fix: fixed missing icons

src/views/zip/index.vue

@@ -1,7 +1,7 @@
 <template>
   <div class="app-container">
     <el-input v-model="filename" placeholder="Please enter the file name (default file)" style="width:300px;" prefix-icon="el-icon-document" />
-    <el-button :loading="downloadLoading" style="margin-bottom:20px;" type="primary" icon="document" @click="handleDownload">
+    <el-button :loading="downloadLoading" style="margin-bottom:20px;" type="primary" icon="el-icon-document" @click="handleDownload">
       Export Zip
     </el-button>
     <el-table v-loading="listLoading" :data="list" element-loading-text="拼命加载中" border fit highlight-current-row>