fix(progress dialog): if there is a parent center on creation

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

launcher/ui/dialogs/ProgressDialog.h

@@ -62,7 +62,7 @@ public:
     explicit ProgressDialog(QWidget *parent = 0);
     ~ProgressDialog();
 
-    void updateSize();
+    void updateSize(bool recenterParent = false);
 
     int execWithTask(Task* task);
     int execWithTask(std::unique_ptr<Task> &&task);