1、左侧菜单树和按钮样式调整

2、上传文件夹逻辑调整
3、文档工具详情新增预览
4、所有的预览功能新增遮罩处理

src/views/tool/downloadFileDetail.vue

@@ -2,7 +2,7 @@
   <div class="fbox1">
     <div class="fl">
       <el-tabs v-model="detailActiveName">
-        <el-tab-pane label="附件信息" name="first" v-loading="previewLoading" element-loading-text="加载中">
+        <el-tab-pane label="附件信息" name="first" v-loading="previewLoading" >
           <el-table :data="attachmentList" style="width: 100%">
             <el-table-column label="序号" width="60" align="center" type="index"></el-table-column>
             <el-table-column label="附件名称" prop="fileName" :show-overflow-tooltip="true" />
@@ -101,6 +101,7 @@
       },
       handlePreview(row){
         this.isPreviewDisable = true
+        this.previewLoading = true
         this.$nextTick(() => {
           this.$refs.previewForm.frontModulePreview(row)
         })