Make some context menu actions translatable (#20401)

* Make some context menu actions translatable

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

src/Gui/MainWindow.cpp

@@ -403,6 +403,8 @@ MainWindow::MainWindow(QWidget * parent, Qt::WindowFlags f)
     if(notificationAreaEnabled) {
         NotificationArea* notificationArea = new NotificationArea(statusBar());
         notificationArea->setObjectName(QStringLiteral("notificationArea"));
+        //: A context menu action used to show or hide the 'notificationArea' toolbar widget
+        notificationArea->setWindowTitle(tr("Notification area"));
         notificationArea->setStyleSheet(QStringLiteral("text-align:left;"));
         statusBar()->addPermanentWidget(notificationArea);
     }