(hotfix) Demo Patch 1.5.4b

Hi, y'all 👋 Small hotfixes:

• We had an oopsie, patch 1.5.1 broke the ability to place lanterns on flat roofs since we changed how the collision geometry was generated. Sorry about that! This is now fixed.
• We got reports that if you walk to the edge of the map, you can fall under. Turns out we only had a soft constraint that was pulling you back in, like a rubber. In FPV mode, the constraint is now a hard one, preventing you from exceeding the walkable map bounds.

Thank you for reporting these to us 💚

Love, Ana & Tom