style(theme.scss): 为.data-custom-tree-node添加悬停背景色

src/styles/app/theme.scss

@@ -41,6 +41,12 @@ html.dark {
     .data-custom-tree-node .menu-icon1 {
         background: hsla(0,0%,100%,0.46);
     }
+    .data-custom-tree-node{
+       
+        &:hover {
+            background-color: #000000;
+        }
+    }
     .data-custom-tree-node .menu-icon1 .cu-tree-node-popover-menu-icon {
         color: black;
     }