[IM] Revert back InteractionModel::Status to be a class enum

[jepenven-silabs]

in PR #32016 the class enum was downgraded to an enum to ease the transition from EmberAfStatus to InteractionModel::Status Once the transition is completed switch it back to class enum

Not changing the class enum to an enum would have double the amount of work needed to do the transition on top of preventing breakage of the transition into multiples small PR. We would have had a 1 or 2 humongous PR doing the switch from one status to another.