Also reload the instance cfg

While this should work, there don't seem to be any places where the signals are listened for, so changes probably will only be available when calling Setting::get
TODO: Fix that ^

logic/BaseInstance.cpp

@@ -171,8 +171,7 @@ bool BaseInstance::canLaunch() const
 
 bool BaseInstance::reload()
 {
-	// TODO reload the instance settings
-	return true;
+	return settings().reload();
 }
 
 QString BaseInstance::baseJar() const