feat: Update mountddi, replace the pairing commands, switch to localdevvpn

* Update mountddi.py

* Update pairing command description and embed content

* Update crash.py

* Update afc.py

* Update VPN app reference in error message

* Update footer text in embed message

* feat: update mount ddi to be downloaded on the fly

also fix some small errors and update errorcodes.json

---------

Co-authored-by: neoarz <email@neoarz.dev>

cogs/idevice/files/errorcodes.json

@@ -328,5 +328,10 @@
         "name": "malformed_package_archive",
         "description": "malformed package archive",
         "code": -67
+    },
+    {
+        "name": "developer_mode_not_enabled",
+        "description": "Developer mode is not enabled",
+        "code": -68
     }
-]
+]