feat: 统一button4种样式：primary/outline/text/default

src/components/_base/navbar/index.vue

@@ -63,7 +63,7 @@ const onEnterpriseItemClick = async (item) => {
           <a-menu-item v-for="item in menuList" :key="String(item.id)">
             <template v-if="item.children">
               <a-dropdown :popup-max-height="false" class="layout-menu-item-dropdown">
-                <a-button>
+                <a-button type="text">
                   <span class="menu-item-text mr-2px"> {{ item.name }}</span>
                   <icon-caret-down size="16" class="arco-icon-down !mr-0" />
                 </a-button>