Add previous/next post navigation to blog template

[topwebs]

It would be useful for the default blog template to include Previous Post / Next Post navigation at the bottom of individual posts.

This is common behavior in WordPress themes and helps readers continue through related chronological content without returning to the blog index.

Suggested behavior:

Determine adjacent published posts by publication date.
Show the previous post title/link and next post title/link at the bottom of a single post.
Hide the corresponding control when there is no previous or next post.
Keep the markup accessible and responsive.

This could be part of the default blog template, or exposed as a simple reusable component for themes.