Qt: Use menu font instead of system font as default font

src/duckstation-qt/main.cpp

@@ -27,6 +27,12 @@ int main(int argc, char* argv[])
 
   QApplication app(argc, argv);
 
+#ifdef _WIN32
+  // Use Segoe UI on Windows rather than MS Shell Dlg 2, courtesy of Dolphin.
+  // Can be removed once switched to Qt 6.
+  QApplication::setFont(QApplication::font("QMenu"));
+#endif
+
   std::unique_ptr<QtHostInterface> host_interface = std::make_unique<QtHostInterface>();
 
   std::unique_ptr<MainWindow> window = std::make_unique<MainWindow>(host_interface.get());

src/duckstation-qt/mainwindow.cpp

@@ -31,7 +31,7 @@ MainWindow::MainWindow(QtHostInterface* host_interface) : QMainWindow(nullptr),
   setupAdditionalUi();
   connectSignals();
 
-  resize(750, 690);
+  resize(800, 700);
 }
 
 MainWindow::~MainWindow()

src/duckstation-qt/settingsdialog.ui

@@ -122,7 +122,7 @@
        <property name="minimumSize">
         <size>
          <width>16777215</width>
-         <height>80</height>
+         <height>110</height>
         </size>
        </property>
       </widget>