Update web app settings and manifest for better compatibility

Fix deprecated meta tag and adjust manifest icon settings for improved compatibility.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 279f1558-c0e3-40e4-8217-be7e9f4c6eca
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Event-Id: 87a959e4-6434-4043-a1c6-8363cd2280a3
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/b984cb14-1d19-4944-922b-bc79e821ed35/279f1558-c0e3-40e4-8217-be7e9f4c6eca/wEQFUUP
Replit-Helium-Checkpoint-Created: true

client/index.html

@@ -17,7 +17,7 @@
     <link rel="icon" type="image/png" href="/favicon.png" />
     <link rel="manifest" href="/manifest.json" />
     <meta name="theme-color" content="#06B6D4" />
-    <meta name="apple-mobile-web-app-capable" content="yes" />
+    <meta name="mobile-web-app-capable" content="yes" />
     <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
     <meta name="apple-mobile-web-app-title" content="AeThex OS" />
     <link rel="preconnect" href="https://fonts.googleapis.com">

client/public/manifest.json

@@ -10,9 +10,9 @@
   "icons": [
     {
       "src": "/favicon.png",
-      "sizes": "192x192",
+      "sizes": "any",
       "type": "image/png",
-      "purpose": "any maskable"
+      "purpose": "any"
     }
   ],
   "categories": ["productivity", "utilities", "developer"],