重构优化框架

这是一个大版本的更新
现在，框架更加稳定

Yi.Vue2.x/src/layouts/default/widgets/Notifications.vue

@@ -0,0 +1,62 @@
+<template>
+  <v-menu
+    bottom
+    left
+    offset-y
+    origin="top right"
+    transition="scale-transition"
+  >
+    <template v-slot:activator="{ attrs, on }">
+      <v-btn
+        class="ml-2"
+        min-width="0"
+        text
+        v-bind="attrs"
+        v-on="on"
+      >
+        <v-badge
+          bordered
+          color="red"
+          overlap
+        >
+          <template v-slot:badge>
+            <span>5</span>
+          </template>
+
+          <v-icon>mdi-bell</v-icon>
+        </v-badge>
+      </v-btn>
+    </template>
+
+    <v-list
+      flat
+      nav
+    >
+      <app-bar-item
+        v-for="(n, i) in notifications"
+        :key="i"
+        link
+      >
+        <v-list-item-content>
+          <v-list-item-title>{{ n }} </v-list-item-title>
+        </v-list-item-content>
+      </app-bar-item>
+    </v-list>
+  </v-menu>
+</template>
+
+<script>
+  export default {
+    name: 'DefaultNotifications',
+
+    data: () => ({
+      notifications: [
+        '临时消息1，请检查邮箱',
+        '临时消息2，请检查邮箱',
+        '临时消息3，请检查邮箱',
+        '临时消息4，请检查邮箱',
+        '临时消息5，请检查邮箱',
+      ],
+    }),
+  }
+</script>