REPORT-101859 fix:FR11样式-下拉树控件模糊搜索无反应，控制台报错

packages/fineui/src/widget/multitree/trigger/multi.tree.search.insert.pane.js

@@ -11,6 +11,10 @@ export class MultiTreeSearchInsertPane extends Widget {
         el: { type: PartTree.xtype },
     };
 
+    static constants = {
+        height: 24,
+    };
+
     static EVENT_CHANGE = "EVENT_CHANGE";
     static EVENT_CLICK_CONFIRM = "EVENT_CLICK_CONFIRM";
     static EVENT_CLICK_CLEAR = "EVENT_CLICK_CLEAR";