Set render window to also accept focus via tabbing (Qt::StrongFocus) (#5089)

src/yuzu/main.cpp

@@ -1798,7 +1798,7 @@ void GMainWindow::ToggleWindowMode() {
         // Render in the main window...
         render_window->BackupGeometry();
         ui.horizontalLayout->addWidget(render_window);
-        render_window->setFocusPolicy(Qt::ClickFocus);
+        render_window->setFocusPolicy(Qt::StrongFocus);
         if (emulation_running) {
             render_window->setVisible(true);
             render_window->setFocus();