* Fix-Improved Stability

* Fix-Ensure seats can be added to team again after a previously refunded team subscription is renewed
* Fix-Display a more specific error message when a user visits the same invitation link after having already accepted the invitation

* Feature-Re-introduce ‘Virtual’ checkbox for Composite Products. When saving a Composite as Virtual, all physical products purchased in its Components will be treated as Virtual, too.
* Fix-Fixed ‘Undefined variable: availability’ notice in ‘WC_CP_Product::get_availability_text()’.
* Fix-Display the component page with the selected option on page load for paginated components.
* Tweak-Updated the data structure returned by ‘WC_CP_Scenarios_Manager::get_settings()’ to prevent datatype errors when ‘json_encode’ gets called downstream.
* Tweak-Added ‘add-to-cart’ parameter to submit button.

* Feature-Re-introduce ‘Virtual’ checkbox for Product Bundles. When saving a Bundle as Virtual, all physical bundled products will be treated as Virtual, too.
* Tweak-Add ‘woocommerce_cart_item_removed’ action to ‘WC_PB_Cart’.
* Tweak-Made bundled product IDs clickable under ‘Product Data > Bundled Products’.
* Tweak-Added ‘add-to-cart’ parameter to submit button.