fix: redirect /nox-protocol/ trailing slash to docs.noxprotocol.io

The /nox-protocol/:path+ rule required at least one path segment, so
/nox-protocol/ (with a trailing slash and empty path) matched neither it
nor the bare /nox-protocol rule and returned a 404. Switch the source and
destination to :path* so the trailing-slash case maps to the new domain
root.

Author: edenbd1

vercel.json

@@ -5,8 +5,8 @@
   "cleanUrls": true,
   "redirects": [
     {
-      "source": "/nox-protocol/:path+",
-      "destination": "https://docs.noxprotocol.io/:path+",
+      "source": "/nox-protocol/:path*",
+      "destination": "https://docs.noxprotocol.io/:path*",
       "permanent": true
     },
     {