Separate icon purposes to avoid any maskable warning

- Split icon-512x512.png into two separate entries
- One with purpose 'any' and one with purpose 'maskable'
- Avoids platform padding issues with combined purposes

nuxt4/nuxt.config.ts

@@ -45,7 +45,13 @@ export default defineNuxtConfig({
           src: '/icon-512x512.png',
           sizes: '512x512',
           type: 'image/png',
-          purpose: 'any maskable'
+          purpose: 'any'
+        },
+        {
+          src: '/icon-512x512.png',
+          sizes: '512x512',
+          type: 'image/png',
+          purpose: 'maskable'
         }
       ],
       screenshots: [