Bit Event: Shrine of the Mountain should activate if teleporter already activated

[JustDerb]

Either don't choose the event, or make it wait until the next stage.

[JustDerb]

This was already added (See EventFactory::TriggerShrineOfTheMountainInternal():

            // Wait until the teleporter isn't active
            yield return new WaitUntil(() => {
                return TeleporterInteraction.instance && TeleporterInteraction.instance.isIdle;
            });