WooCommerce Deposits 2.2.8

* Fix - Issue where deposits not calculated when using variable products.
* Fix - Issue where Bookable product properties not saved.
* Fix - Issue where error is thrown in front-end page that uses Visual Composer. Making sure `$product` is object before calling `$product->get_id()`.
* Fix - Issue where deposit icon tab in product data meta box is not aligned properly.

* Fix - Avoid checking deposit status on invalid orders

* Fix - Schedules were not able to be removed from existing plans.
* Fix - Hides payment plan if Pay in Full is selected by default.
* Fix - Removed payable in total section from order item totals.
* Fix - Make sure pending-deposit status is a valid transition to complete the payment.
* Tweak - Add dismissible activation notice for next steps.
* Tweak - Make it easier to manage storewide settings by adding a link in description text.
* Tweak - Rename sitewide to storewide
* Twak - Unbold 'future payments' wording