fix(file-search):无默认打开应用的文件双击无弹窗.

libsearch/index/file-search-plugin.cpp

@@ -154,7 +154,7 @@ void FileSearchPlugin::openAction(int actionkey, QString key, int type)
                 msgBox.addButton(tr("OK"), QMessageBox::YesRole);
                 msgBox.setIcon(QMessageBox::Information);
                 msgBox.setText(tr("Can not get a default application for opening %1.").arg(key));
-                msgBox.open();
+                msgBox.exec();
             }
             break;
         case 1:
@@ -273,7 +273,7 @@ void FileSearchPlugin::initDetailPage()
             msgBox.addButton(tr("OK"), QMessageBox::YesRole);
             msgBox.setIcon(QMessageBox::Information);
             msgBox.setText(tr("Can not get a default application for opening %1.").arg(m_currentActionKey));
-            msgBox.open();
+            msgBox.exec();
         }
     });
     connect(m_actionLabel2, &ActionLabel::actionTriggered, [ & ](){