fix: pwa logo type

src/webapp/app/manifest.ts

···
     theme_color: theme.colors?.orange?.[6],
     icons: [
       {
-        src: '/assets/semble-icon-192x192.png',
+        src: '/semble-icon-192x192.png',
         sizes: '192x192',
-        type: 'image/x-icon',
+        type: 'image/png',
       },
       {
-        src: '/assets/semble-icon-512x512.png',
+        src: '/semble-icon-512x512.png',
         sizes: '512x512',
-        type: 'image/x-icon',
+        type: 'image/png',
       },
     ],
   };