feat: add maskable PWA icons (#1857)

fixes #1856

static/manifest.json

@@ -62,6 +62,42 @@
       "src": "icon-150.png",
       "sizes": "150x150",
       "type": "image/png"
+    },
+    {
+      "src": "icon-48-maskable.png",
+      "sizes": "48x48",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "icon-72-maskable.png",
+      "sizes": "72x72",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "icon-96-maskable.png",
+      "sizes": "96x96",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "icon-144-maskable.png",
+      "sizes": "144x144",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "icon-192-maskable.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "icon-512-maskable.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "maskable"
     }
   ]
 }