修复邮件发送模块不支持Qt6的BUG

widget/lunarcalendarwidget/lunarcalendaritem.h

@@ -62,11 +62,7 @@ public:
     explicit LunarCalendarItem(QWidget *parent = 0);
 
 protected:
-#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
-    void enterEvent(QEnterEvent *);
-#else
     void enterEvent(QEvent *);
-#endif
     void leaveEvent(QEvent *);
     void mousePressEvent(QMouseEvent *);
     void mouseReleaseEvent(QMouseEvent *);