Bundle stock is available even bundle item is not in stock

Additional rework of stock handling needed.

I fixed a couple of issues and left only handling stock during order placement or completion, as is in the core.

Based on these events, we update as well parent bundles.

But stock integration need to be updated more, created follow up https://www.drupal.org/project/commerce_variation_bundle/issues/3406899 📌 Rethink dynamic bundle local stock Active

Automatically closed - issue fixed for 2 weeks with no activity.