docs(pages): redesign landing page with monochrome icons and SEO

Rework the marketing site with a cleaner, more restrained layout, replace emoji with Material Symbols monochrome icons, and add full SEO (Open Graph, Twitter cards, JSON-LD, canonical, robots.txt, sitemap.xml).
2026-07-05 19:26:23 +08:00
parent 98abc47600
commit 6f8ae5a4af
3 changed files with 468 additions and 665 deletions
@@ -0,0 +1,4 @@
+User-agent: *
+Allow: /
+
+Sitemap: https://hkgood.github.io/OSGKeyboard/sitemap.xml