Adds backToTop as a Wrapper level prop
Adds a prop to x-live-blog-wrapper to set backToTop globally for all posts inside a live blog
Does not deprecate the existing mechanism for adding backToTop on a per-post basis
Adds a prop to x-live-blog-wrapper to set backToTop globally for all posts inside a live blog
Does not deprecate the existing mechanism for adding backToTop on a per-post basis