added otp handling user

src/auth/services/user-auth.service.ts

@@ -230,7 +230,7 @@ export class UserAuthService {
           email: data.email,
         },
       });
-      if (user) {
+      if (!user) {
         throw new BadRequestException('this email is not registered');
       }
       throw new BadRequestException('You entered wrong otp');