disable sign-up on event day

tsconfig.json

@@ -22,6 +22,6 @@
     },
     "target": "ES2023"
   },
-  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts"],
+  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts", "event-dates.json"],
   "exclude": ["node_modules"]
 }