feat: 优化 PureTableBar 组件，添加列展示功能

src/views/system/user/index.vue

@@ -88,13 +88,13 @@ const {
         </el-form-item>
       </el-form>
 
-      <PureTableBar title="用户管理" @refresh="onSearch">
+      <PureTableBar title="用户管理" :columns="columns" @refresh="onSearch">
         <template #buttons>
           <el-button type="primary" :icon="useRenderIcon(AddFill)">
             新增用户
           </el-button>
         </template>
-        <template v-slot="{ size, checkList }">
+        <template v-slot="{ size, dynamicColumns }">
           <pure-table
             border
             align-whole="center"
@@ -102,8 +102,7 @@ const {
             :loading="loading"
             :size="size"
             :data="dataList"
-            :columns="columns"
-            :checkList="checkList"
+            :columns="dynamicColumns"
             :pagination="pagination"
             :paginationSmall="size === 'small' ? true : false"
             :header-cell-style="{