All Products for WooCommerce Subscriptions 6.0.4

* Fix - Fixed an issue that prevented plan discounts with comma separated decimals from being saved.
* Fix - Fixed an issue with 404 errors on frontend assets in some managed server configurations.
* Fix - Fixed an issue that prevented the selection of cart plans when adding carts to existing subscriptions is disabled.
* Fix - Fixed an issue that prevented cart contents from being added to existing subscriptions when cart plans are not in use.
* Tweak - Minor styling adjustments to the 'My Account - Subscription Switch' button.

* Fix - Prevented a fatal error complaining about the 'WCS_ATT_Admin_Notices' class in new installations.
* Tweak - Minor telemetry data point adjustments

* Tweak - Hide 'Cart Plans' and 'Add to Subscription > Carts' settings when using the Cart block.