Add confirm logout.

src/dialogs/AccountFormDialog.cpp

@@ -152,6 +152,10 @@ void AccountFormDialog::addSelfModeUI(QHBoxLayout* hlayout)
 
     hlayout->addWidget(btnLogout);
     connect(btnLogout, &QAbstractButton::clicked, [=]() {
+        if(DialogManager::Default()->requestAlertMessage(tr("Do you want to logout the current user?"), OkAndCancel, tr("Logout")) == QDialog::Rejected)
+        {
+            return;
+        }
         accept();
         LOG_USER_OPERATION("Logout")
             EventCenter::Default()->triggerEvent(RequestLogin, nullptr, nullptr);