fix: revert sitemap.xml to main state prior to approval

Author: TechStack Global

sitemap.xml

@@ -1,4 +1,4 @@
-<?xml version='1.0' encoding='utf-8'?>
+<?xml version="1.0" encoding="UTF-8"?>
 <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
   <url>
     <loc>https://techstackglobal.github.io/about.html</loc>
@@ -198,4 +198,4 @@
     <changefreq>monthly</changefreq>
     <priority>0.8</priority>
   </url>
-<url><loc>https://techstackglobal.github.io/posts/best-noise-cancelling-headphones-2026.html</loc><lastmod>2026-03-03</lastmod></url><url><loc>https://techstackglobal.github.io/posts/best-podcast-microphones-2026.html</loc><lastmod>2026-03-03</lastmod></url><url><loc>https://techstackglobal.github.io/posts/best-ultrawide-monitors-2026.html</loc><lastmod>2026-03-03</lastmod></url></urlset>
+</urlset>