优化固定头部页签滚动条被隐藏的问题

ruoyi-ui/src/layout/index.vue

@@ -78,6 +78,10 @@ export default {
       height: 100%;
     }
 
+    ::v-deep .el-scrollbar__bar.is-vertical {
+      z-index: 10;
+    }
+  
     ::v-deep .el-scrollbar__wrap {
       overflow-x: hidden;
     }