优化消息通知页面的布局

jshERP-web/src/views/system/MsgList.vue

@@ -6,7 +6,7 @@
     :confirmLoading="confirmLoading"
     @cancel="handleCancel"
     cancelText="关闭"
-    style="top:20%;height: 60%;overflow-y: hidden">
+    style="top:15%;height: 70%;overflow-y: hidden">
     <template slot="footer">
       <a-button key="back" @click="handleCancel">
         关闭
@@ -81,6 +81,10 @@
         queryParam: {
           name: ''
         },
+        ipagination:{
+          pageSize: 5,
+          pageSizeOptions: ['5','10', '20', '30']
+        },
         columns: [{
           title: '标题',
           dataIndex: 'msgTitle',