Update manifest.webmanifest

Author: Pro-Bandey

manifest.webmanifest

@@ -8,18 +8,29 @@
   "lang": "en",
   "dir": "auto",
   "display": "standalone",
-  "display_override": [
-    "minimal-ui"
-  ],
   "orientation": "any",
   "background_color": "#ffffff",
   "theme_color": "#2563eb",
 
+  "categories": [
+    "developer",
+    "developer tools",
+    "development",
+    "productivity",
+    "utilities"
+  ],
 
   "launch_handler": {
     "client_mode": "navigate-existing"
   },
 
+  "protocol_handlers": [
+    {
+      "protocol": "mailto",
+      "url": "./&tar=%s"
+    }
+  ],
+
   "handle_links": "preferred",
   "capture_links": "existing-client-navigate",
   "prefer_related_applications": false,