Update PWA metadata

frontend/index.html

@@ -5,6 +5,12 @@
     <link rel="icon" href="/horde.png">
     <meta name="viewport" content="width=device-width, height=device-height, initial-scale=1.0">
 
+    <!-- PWA tags -->
+    <meta name="description" content="Chat with Horde agents">
+    <link rel="apple-touch-icon" href="/apple-icon-180.png" sizes="180x180">
+    <link rel="mask-icon" href="/horde.png" color="#FFFFFF">
+    <meta name="theme-color" content="#181818">
+
     <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.7.2/css/all.min.css" rel="stylesheet">
     <!--link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.13.1/font/bootstrap-icons.min.css"-->
 

frontend/public/robots.txt

@@ -0,0 +1,2 @@
+User-agent: *
+Allow: /

frontend/vite.config.js

@@ -13,6 +13,25 @@ export default defineConfig({
     VitePWA({
       registerType: 'autoUpdate',
       devOptions: {enabled: true},
+      manifest: {
+        name: 'Horde Hub',
+        short_name: 'horde-hub',
+        description: 'Chat with Horde agents',
+        background_color:"#181818",
+        theme_color: '#42b883',
+        icons: [
+          {
+            src: 'icon-192.png',
+            sizes: '192x192',
+            type: 'image/png'
+          },
+          {
+            src: 'icon-512.png',
+            sizes: '512x512',
+            type: 'image/png'
+          }
+        ]
+      }
     }),
   ],
   build: {