Add remote configuration support and fix app name

Features:
- Fixed app name from "Dark Side Admin" to "SilverDROID"
- Added remote configuration loader with AppStore integration
- Support for user-specific configurations
- Bearer token authentication for secure config retrieval
- Automatic fallback to local config if remote fails
- Remote config refresh interval support

Configuration example updated with remoteConfig section.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

config.example.json

@@ -8,6 +8,15 @@
   "showUrlBar": false,
   "allowNavigation": true,
 
+  "remoteConfig": {
+    "_comment": "Optional remote configuration from AppStore",
+    "enabled": false,
+    "url": "https://appstore.silverlabs.uk/api/config/silverdroid",
+    "authToken": "YOUR_APPSTORE_TOKEN_HERE",
+    "userSpecific": true,
+    "refreshInterval": 3600000
+  },
+
   "vpn": {
     "_comment": "Optional WireGuard VPN configuration",
     "enabled": false,