Revert broken vercel configuration

Author: scinorandex

now.json

@@ -8,8 +8,13 @@
     ],
     "routes": [
         {
+            "headers": {
+                "Access-Control-Allow-Origin": "*",
+                "Access-Control-Allow-Methods": "GET, POST, PUT, DELETE, OPTIONS",
+                "Access-Control-Allow-Headers": "X-Requested-With, Content-Type, Accept"
+            },
             "src": "/(.*)",
-            "dest": "src/"
+            "dest": "src/api.ts"
         }
     ],
     "env": {