Client-side support for teleport pads: 3 points

[nataliavelez]

As a player, I can drop an object on a teleport pad and press the action button to move it to another teleport pad that’s paired with it.

Example: Returning to the map in story 1: If the orange player drops an apple on their end, it should then appear on the teleport pad next to blue.

[silviot]

I started implementing this, and I think most of the work related to this feature is about allowing two different objects to be shown in the same cell.
I think it's best to discuss how to achieve this.