All Products for WooCommerce Subscriptions 6.0.4

* Fix - Fixed an issue where 'Add this cart to an existing subscription' is displayed when user not logged in.

* Feature - Hide WooCommerce Payments quick-pay buttons in product pages with Subscription plans.
* Fix - Fixed an issue that resulted in an immediate charge of synchronized subscription plans. Introduced in v3.1.31 after changing the priorities of price filters.
* Fix - Fixed an issue that prevented bundled items from being removed from a subscription when removing their parent Bundle, in scenarios when the parent Bundle is part of a Composite Product.

* Feature - Added integration with PayPal Payments to hide quick-pay buttons in product pages with subscription plans.
* Fix - Fixed missing notices.
* Fix - Fixed PHP warning triggered when selecting a discounted Subscription plan for a Product Bundle without a Regular/Sale price.