REPORT-99485 修复模版tab下拉框触发区太大的问题

designer-base/src/main/java/com/fr/design/file/MultiTemplateTabPane.java

@@ -783,7 +783,7 @@ public class MultiTemplateTabPane extends Row {
 
 
     private boolean isOverListDown(int evtX) {
-        int maxWidth = getWidth() - scale(TRAILING_WIDTH) - scale(LEADING_WIDTH);
+        int maxWidth = getWidth() - scale(LEADING_WIDTH);
         return evtX >= (maxWidth + SMALLGAP) && evtX <= (getWidth() - SMALLGAP);
     }