3- To style the product added to cart notification you have to make it with custom CSS code. You can add your own custom CSS code in the XSTORE >> Theme settings >> Theme Custom CSS >> Global CSS.
4- To add the product filters in your store simply navigate to the Dashboard >> Appearance >> Widgets >> Then add the products filters in the “Shop Sidebar” or “Shop filters” then check back to your site after clearing the browser cache. See the image: https://postimg.cc/vDBHm6Nv
5- It appear fine for me check the image: https://postimg.cc/7CS8hq3D and check back to your site after clearing the browser cache.
