Add comprehensive favicon and PWA support

manifest.json

@@ -0,0 +1,43 @@
+{
+  "name": "UK Data Services",
+  "short_name": "UKDS",
+  "description": "Professional web scraping and data analytics services in the UK",
+  "start_url": "/",
+  "display": "standalone",
+  "background_color": "#667eea",
+  "theme_color": "#764ba2",
+  "orientation": "portrait-primary",
+  "icons": [
+    {
+      "src": "assets/images/favicon-16x16.svg",
+      "sizes": "16x16",
+      "type": "image/svg+xml"
+    },
+    {
+      "src": "assets/images/favicon-32x32.svg", 
+      "sizes": "32x32",
+      "type": "image/svg+xml"
+    },
+    {
+      "src": "assets/images/favicon.svg",
+      "sizes": "any",
+      "type": "image/svg+xml"
+    },
+    {
+      "src": "assets/images/apple-touch-icon.svg",
+      "sizes": "180x180",
+      "type": "image/svg+xml",
+      "purpose": "apple-touch-icon"
+    },
+    {
+      "src": "assets/images/ukds-main-logo.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "any maskable"
+    }
+  ],
+  "categories": ["business", "productivity", "utilities"],
+  "lang": "en-GB",
+  "scope": "/",
+  "id": "uk-data-services"
+}