Change the lock's sprite layer to be the same. (#3090)

Fixes #3089

Author: bruhmoent

src/trigger/door.cpp

@@ -169,7 +169,7 @@ Door::draw(DrawingContext& context)
     Vector shake_delta = Vector(static_cast<float>(graphicsRandom.rand(-8, 8)), static_cast<float>(graphicsRandom.rand(-8, 8)));
     float shake_strength = m_lock_warn_timer.started() ? m_lock_warn_timer.get_timeleft() : 0.f;
     m_lock_sprite->draw(context.color(), get_bbox().get_middle() -
-      (Vector(m_lock_sprite->get_width() / 2, m_lock_sprite->get_height() / 2) + (shake_delta*shake_strength)), LAYER_BACKGROUNDTILES + 1, m_flip);
+      (Vector(m_lock_sprite->get_width() / 2, m_lock_sprite->get_height() / 2) + (shake_delta*shake_strength)), m_layer, m_flip);
   }
 }