[Scene Editor] Changing entity order causes problems

[Lavesiime]

In the Scene Editor there's this tab on the left-hand side of the window, where a list of entities is provided. On this list, entities can be moved around using arrows at the bottom of the tab. However, when moving the object around, it seems to affect its surrounding entities in rather adverse ways, swapping values with them. Additionally, there is no minimum/maximum value enforced, so the user can attempt to move object 0 backwards or the last object forwards (both of which will cause a crash).

[Rubberduckycooly]

moving slot 0 up and last slow down has been fixed as of c2f97ed4056783551ffff9d6e591ed6fca414ede