Several Ninja Suit power cell upgrade fixes. (#32902)

Several Ninja Suit power cell upgrade fixes. (#32902)

* Fix several jank issues with space ninja cell upgrades.

* Rework the code to comply with maintainer request.

* Fix some naming convention & formatting errors.

* Change from a custom check to an item whitelist to avoid power cages from fitting.

* Make the EntityUid of GetCellScore non nullable.

* Remove a line from a previous solution to the above problem I forgot to remove.

* Fix the magic number issue.