insert_plan/removal_plan doesn't return a BlueprintInsertPlan following the spec

[Quezler]

- place chest
- use remote view to set a request
- /c log(serpent.line(game.player.selected.item_request_proxy.insert_plan[1].id))
- {name = "wooden-chest"} instead of {name = ItemPrototype}
- same goes with the removal_plan