fix: when given a remost resource, download and identify it before import.

Signed-off-by: Rachel Powers <508861+Ryex@users.noreply.github.com>

launcher/ui/MainWindow.h

@@ -210,7 +210,7 @@ private slots:
 private:
     void retranslateUi();
 
-    void addInstance(QString url = QString());
+    void addInstance(const QString& url = QString(), const QMap<QString, QString>& extra_info = {});
     void activateInstance(InstancePtr instance);
     void setCatBackground(bool enabled);
     void updateInstanceToolIcon(QString new_icon);