Adds xmlns:atom namespace declaration to the XSL stylesheet to support Atom feed elements and ensure proper XML namespace resolution
This enables handling of Atom elements within RSS feeds while maintaining compatibility with existing RSS functionality.
Switches from getRssString to modern rss helper function
Moves XSL stylesheet to dedicated static file
Improves code organization and maintainability
Simplifies RSS feed configuration while maintaining beautification option
Implements dynamic sitemap generation to improve SEO by providing search engines with updated site structure and content availability. This includes a root sitemap index and paginated sitemap files for individual posts, enhancing crawl efficiency and content discoverability.
