fix:修复树形控件布局异常的问题

src/components/ibps-tree/index.vue

@@ -567,7 +567,7 @@ $border-color: #e5e6e7;
     .ibps-tree-wrapper {
         background: #ffffff;
         .el-tree > .el-tree-node {
-            display: inline-block;
+            display: block;
         }
     }
     .ibps-custom-tree-node {