disableDefaultMutations: true is not disabled in postgraphile UI for large database
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### Summary

I am having a large database which contains around 1200 tables and the database size may increase later. while I am creating my postgraphile UI,  I am using disableDefaultMutations: true  option as I am using Postgraphile as a library. Even though if I use it, I am facing the above issue as it is not disabled in the UI.

### Steps to reproduce

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### Expected results

- I need to disable my postgraphile mutation option

### Actual results

Postgraphile mutations are enabled eventhough if I disable them
![image](https://github.com/graphile/postgraphile/assets/143176104/d1dda8ea-5087-4e2d-af9a-3a0ee450ae50)

![image](https://github.com/graphile/postgraphile/assets/143176104/e76c0218-7db6-46a5-845b-ad62769c47fb)

**code:**

![image](https://github.com/graphile/postgraphile/assets/143176104/f14db94e-5184-40ef-b6f1-36d51bd24ede)
 

### Additional context

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      operating system, Node, PostgreSQL, Redis, etc. as relevant), software
      versions (from `yarn.lock`) or similar, plugins in use, database schema
      if relevant, bundler (if any). -->

### Possible Solution

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