change: put settings initialization in a separate function

Signed-off-by: flow <flowlnlnln@gmail.com>

launcher/NullInstance.h

@@ -15,6 +15,10 @@ public:
     void saveNow() override
     {
     }
+    void loadSettingsIfNeeded() override
+    {
+        m_settings_loaded = true;
+    }
     QString getStatusbarDescription() override
     {
         return tr("Unknown instance type");