refactor: simpler timing inputs

supabase/schemas/0001_users.sql

@@ -2,7 +2,7 @@ CREATE TABLE users (
     id uuid PRIMARY KEY REFERENCES auth.users ON DELETE CASCADE,
     is_admin boolean NOT NULL DEFAULT false,
     created_at timestamp with time zone NOT NULL DEFAULT now(),
-    updated_at timestamp with time zone NOT NULL DEFAULT now(),
+    updated_at timestamp with time zone NOT NULL DEFAULT now()
 );
 
 CREATE TRIGGER users_handle_updated_at