Wrapped author name and date in a <p> tag with a muted text class
to enhance readability and visual hierarchy on the 'single-letter'
template. Additionally, added missing newline after 'register_post_type'
call in functions.php for better code formatting.
Addresses visual consistency and readability issues.
Introduced a new custom post type "Letters to the Editor" with corresponding archive and single templates. Enhanced post type functionality includes support for featured images, authors, excerpts, and comments. Added pagination and a meta box for article authors to improve user interaction and content management.