qt: Don't resize renderer screen beyond window size

src/qt/qt_mainwindow.cpp

@@ -261,7 +261,7 @@ MainWindow::MainWindow(QWidget *parent)
                 + (statusBar()->height() * !hide_status_bar)
                 + (ui->toolBar->height() * !hide_tool_bar);
 
-            ui->stackedWidget->resize(w, h);
+            ui->stackedWidget->resize(w, (h / (!dpi_scale ? util::screenOfWidget(this)->devicePixelRatio() : 1.)));
             setFixedSize(w, modifiedHeight);
         }
     });