refactor(PageContent): ♻️ 筛选列超出一定高度滚动

src/components/PageContent/index.vue

@@ -67,6 +67,7 @@
               <template #reference>
                 <el-button icon="Operation" circle />
               </template>
+              <el-scrollbar max-height="350px">
                 <template v-for="col in cols" :key="col">
                   <el-checkbox
                     v-if="col.prop"
@@ -74,6 +75,7 @@
                     :label="col.label"
                   />
                 </template>
+              </el-scrollbar>
             </el-popover>
           </template>
           <!-- 搜索 -->