feat: 表格下钻后，页面顶部的四级菜单下拉内容样式异常及显示列表内容异常修改

src/assets/css/components/components/layout/layout.scss

@@ -211,8 +211,7 @@
 
 .breadcrumb__popper{
   top: 96px !important;
-  width: 180px !important;
-  min-width: 180px;
+  width: fit-content !important;
   max-height: 206px;
   overflow: hidden;
   padding: 0 !important;
@@ -223,7 +222,8 @@
   }
   .select-dropdown {
     max-height: 172px;
-    width: 100%;
+    width: 200px !important;
+    min-width: 200px;
     margin: 1px 0;
     overflow: auto;
     list-style: none;
@@ -231,7 +231,6 @@
     box-sizing: border-box;
 
     .select-dropdown__item{
-      width: 100%;
       height: 30px;
       padding: 0 11px;
       line-height: 30px;

src/components/layout/Header.vue

@@ -411,6 +411,7 @@ export default {
       }
     },
     async breadcrumb (n) {
+      this.breadcrumbColumnValueListShow = []
       this.curTabProp = this.$route.query.dimensionType ? this.$route.query.dimensionType : null
       if (this.$route.path.replace('/panel/', '') === fromRoute.dnsServiceInsights) {
         if (this.dnsQtypeMapData.size === 0) {
@@ -612,7 +613,6 @@ export default {
       })
     },
     showBreadcrumbPopover (valueMenuId) {
-      this.breadcrumbColumnValueListShow.splice(0, this.breadcrumbColumnValueListShow.length)
       this.curPageNum = 1
       this.showBackground = true
       this.dropDownValue = ''
@@ -630,6 +630,7 @@ export default {
       }
     },
     changeValue (value) {
+      this.breadcrumbColumnValueListShow = []
       // 设置面包屑显示的内容及hover时的title
       let valName = value
       if (this.curTabProp === 'qtype') {