修复打开之后不单击树中任何页面就切换到设置时默认页面不能取消选择的bug

gui/spkmainwindow.cpp

@@ -556,6 +556,8 @@ SpkUi::SpkMainWidget::SpkMainWidget(QWidget *parent) : QFrame(parent)
 
   // Default page selection : homepage
   HomepageItem->setSelected(true);
+  // Manually "activate" the default page item to make the sidebar tree know about default item
+  emit CategoryWidget->itemPressed(HomepageItem, 0);
 
   setLayout(HorizontalDivide);
 }