XT WooCommerce Floating Cart Pro 2.8.4

- **fix**: Fixed issue with Related Products not visible if the cart has only variable products.
- **fix**: Minor CSS Fixes

- **support**: Better support / price display for subscription products.
- **fix**: Fix cart visibility issue caused by the z-index css property not being calculated properly when using the SG Optimizer plugin to minify CSS.

- **fix**: Fix intermittent issue with paypal express button not showing the first time after adding to cart
- **support**: Multisite - Network Level License Management
- **update**: XT Framework update