Update main.cpp

https://doc.qt.io/qt-5/qguiapplication.html#setHighDpiScaleFactorRoundingPolicy

src/app/main.cpp

@@ -120,6 +120,7 @@ int main(int argc, char *argv[])
     QApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
     QApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
 #endif
+    QApplication::setHighDpiScaleFactorRoundingPolicy(Qt::HighDpiScaleFactorRoundingPolicy::PassThrough);
     QApplication::setAttribute(Qt::AA_ShareOpenGLContexts);
     QApplication::setAttribute(Qt::AA_UseDesktopOpenGL);