Restructure blogs as Astro monorepo

sites/puzzles/public/favicon/favicon.svg

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+<svg xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:svgjs="http://svgjs.dev/svgjs" width="1000" height="1000"><g clip-path="url(#SvgjsClipPath1046)"><rect width="1000" height="1000" fill="#ffffff"></rect><g transform="matrix(8.860759493670885,0,0,8.860759493670885,150.00000000000006,189.873417721519)"><svg xmlns="http://www.w3.org/2000/svg" version="1.1" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:svgjs="http://svgjs.dev/svgjs" width="79" height="70" viewBox="0 0 79 70"><image width="79" height="70" xlink:href="data:image/png;base64,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"></image></svg></g></g><defs><clipPath id="SvgjsClipPath1046"><rect width="1000" height="1000" x="0" y="0" rx="200" ry="200"></rect></clipPath></defs></svg>

sites/puzzles/public/favicon/site.webmanifest

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+{
+  "name": "MyWebSite",
+  "short_name": "MySite",
+  "icons": [
+    {
+      "src": "/web-app-manifest-192x192.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/web-app-manifest-512x512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "maskable"
+    }
+  ],
+  "theme_color": "#ffffff",
+  "background_color": "#ffffff",
+  "display": "standalone"
+}