perf[dashboard]: add resonsive dashboard

src/views/dashboard/admin/components/TransactionTable.vue

 <template>
   <el-table :data="list" style="width: 100%;padding-top: 15px;">
-    <el-table-column label="Order_No" show-overflow-tooltip>
+    <el-table-column label="Order_No" min-width="200">
       <template slot-scope="scope">
         {{scope.row.order_no}}
       </template>
@@ -42,7 +42,7 @@ export default {
   methods: {
     fetchData() {
       fetchList().then(response => {
-        this.list = response.data.items.slice(0, 7)
+        this.list = response.data.items.slice(0, 8)
       })
     }
   }

src/views/dashboard/admin/index.vue

@@ -30,10 +30,10 @@
       <el-col :xs="{span: 24}" :sm="{span: 24}" :md="{span: 24}" :lg="{span: 12}" :xl="{span: 12}" style="padding-right:8px;margin-bottom:30px;">
         <transaction-table></transaction-table>
       </el-col>
-      <el-col :xs="{span: 12}" :sm="{span: 12}" :md="{span: 12}" :lg="{span: 6}" :xl="{span: 5}">
+      <el-col :xs="{span: 24}" :sm="{span: 12}" :md="{span: 12}" :lg="{span: 6}" :xl="{span: 5}" style="margin-bottom:30px;">
         <todo-list></todo-list>
       </el-col>
-      <el-col :xs="{span: 12}" :sm="{span: 12}" :md="{span: 12}" :lg="{span: 6}" :xl="{span: 5}">
+      <el-col :xs="{span: 24}" :sm="{span: 12}" :md="{span: 12}" :lg="{span: 6}" :xl="{span: 5}" style="margin-bottom:30px;" >
         <box-card></box-card>
       </el-col>
     </el-row>