Refactor routing rules in vercel.json

Signed-off-by: Aviv Keller <me@aviv.sh>

Author: avivkeller

vercel.json

@@ -14,23 +14,13 @@
       "permanent": true
     },
     {
-      "source": "/learn/diagnostics/live-debugging",
-      "destination": "/learn/diagnostics/live-debugging/",
+      "source": "/learn/diagnostics/:page(live-debugging|memory|poor-performance)",
+      "destination": "/learn/diagnostics/:page/",
       "permanent": true
     },
     {
-      "source": "/learn/diagnostics/memory",
-      "destination": "/learn/diagnostics/memory/",
-      "permanent": true
-    },
-    {
-      "source": "/learn/diagnostics/poor-performance",
-      "destination": "/learn/diagnostics/poor-performance/",
-      "permanent": true
-    },
-    {
-      "source": "/learn/(.*)/",
-      "destination": "/learn/$1",
+      "source": "/learn/:path((?!diagnostics/live-debugging/?$|diagnostics/memory/?$|diagnostics/poor-performance/?$).+)/",
+      "destination": "/learn/:path",
       "permanent": true
     }
   ],