fix：代码规范

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

@@ -668,14 +668,14 @@ public class MultiTemplateTabPane extends JComponent {
 
 
     private boolean isOverCloseIcon(int evtX) {
-        boolean isOverCloseIcon = false;
+        boolean overCloseIcon = false;
         for (int i = 0; i < startX.length; i++) {
             if (evtX >= startX[i] && evtX <= startX[i] + CLOSE.getIconWidth()) {
-                isOverCloseIcon = true;
+                overCloseIcon = true;
                 break;
             }
         }
-        return isOverCloseIcon;
+        return overCloseIcon;
     }