Hello,
1) XStore files generator does not create pages. It’s for the generation of the CSS and JS files.
If you need to create Wishlist page go to Pages > add new > create a page with the wishlist shortcode [yith_wcwl_wishlist] https://www.8theme.com/documentation/xstore/plugins/wishlist/ .
To create any page with the Blank template (without header and footer) then just create a simple page and choose the Blank in the Templates drop-down https://www.8theme.com/documentation/xstore/theme-installation/blank-page/
2) Set the icons according to docs (YITH > Wishlist > Add to wishlist options > Icons > none https://www.8theme.com/documentation/xstore/plugins/wishlist/ ) to remove the double icons for the wishlist.
Regards