feat: add application icons to main window and build configuration

main.js

@@ -11,6 +11,7 @@ function createWindow() {
     height: 820,
     minWidth: 1000,
     minHeight: 700,
+    icon: path.join(__dirname, 'docs', 'dekupai-logo.png'), // Custom app logo
     frame: false, // Sleek frameless design
     transparent: false, // Set to false to avoid rendering bugs on some Windows setups
     backgroundColor: '#0a0a0f', // Dark baseline background

package.json

@@ -37,11 +37,13 @@
       "!node_modules/**"
     ],
     "win": {
-      "target": "nsis"
+      "target": "nsis",
+      "icon": "build/icon.ico"
     },
     "mac": {
       "target": "dmg",
-      "category": "public.app-category.graphics-design"
+      "category": "public.app-category.graphics-design",
+      "icon": "build/icon.png"
     }
   }
 }