SEO & content optimization: meta tags, structured data, improved targeting

Major improvements:
- Add comprehensive meta tags (Open Graph, Twitter Cards, canonical URL)
- Implement schema.org structured data (Organization, FAQPage)
- Optimize H1 with keywords: "Non-profit registrator for .dk-domæner"
- Add robots.txt and sitemap.xml with Flask routes
- Improve hero intro with specific pain point (90-150 kr/year)
- Enhance DNSSEC description with technical details (DS-records)
- Update timeline to May 2026
- Add FAQ comparing PunktFri to commercial providers
- CSS styling for H1 subtitle

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

static/sitemap.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+  <url>
+    <loc>https://punktfri.dk/</loc>
+    <lastmod>2026-05-22</lastmod>
+    <changefreq>weekly</changefreq>
+    <priority>1.0</priority>
+  </url>
+</urlset>