修复快速从应用列表进入应用详情时的崩溃

正确地断开过期的信号，正确地处理过期的请求

gui/page/spkpageappdetails.cpp

@@ -148,6 +148,7 @@ namespace SpkUi
   void SpkPageAppDetails::ResourceAcquisitionFinished(int id, ResourceResult result)
   {
     QPixmap icon;
+//    qDebug() << "PageAppDetails: Resource" << id << "acquired";
     if(!id)
     {
       // id == 0, icon

gui/page/spkpageapplist.cpp

@@ -97,6 +97,7 @@ namespace SpkUi
   void SpkPageAppList::ResourceAcquisitionFinished(int id, ResourceResult result)
   {
     QPixmap icon;
+//    qDebug() << "PageAppList: Resource" << id << "acquired";
     auto item = mAppItemList[id];
     if(result.status == SpkResource::ResourceStatus::Ready)
     {