Only call on interactive uses

Signed-off-by: Yihe Li <winmikedows@hotmail.com>

launcher/BaseInstance.h

@@ -126,6 +126,9 @@ class BaseInstance : public QObject, public std::enable_shared_from_this<BaseIns
     QString name() const;
     void setName(QString val);
 
+    /// Sync name and rename instance dir accordingly; returns true if successful
+    bool syncInstanceDirName() const;
+
     /// Value used for instance window titles
     QString windowTitle() const;