Put items inside cakes! (#31015)

* First commit

* I'm silly

* Please be it

* Some more fixes

* Cleanup

* fine!

* removed = false

* review

---------

Co-authored-by: Milon <milonpl.git@proton.me>

Content.Server/Polymorph/Systems/PolymorphSystem.cs

@@ -2,6 +2,7 @@ using Content.Server.Actions;
 using Content.Server.Humanoid;
 using Content.Server.Inventory;
 using Content.Server.Mind.Commands;
+using Content.Shared.Nutrition;
 using Content.Server.Polymorph.Components;
 using Content.Shared.Actions;
 using Content.Shared.Buckle;