Simplified the area surrounding the player-activated lift.

Added a button to respawn the cube so players can't trap themselves (found by NOT A DOG). Also disabled auto-respawn on the cube dropper to prevent an unintended solution, and added an extra second to the timer.

Moved the player-activated lift further from the diagonal surface to prevent an unintended solution found by nerdlingnation.

Removed some portal surfaces on the floor to prevent an unintended solution found by Aneonen.