[BUDI-7258] It looks like you can add a new user via the table block, but it fails silently

[melohagan]

Checklist

• I have searched budibase discussions and github issues to check if my issue already exists

Hosting

• Self
  • Method: docker compose
  • Budibase Version: 2.8.1

Describe the bug
You can display the users from the users table in a Table block. Checking the Show new row side panel option allows you to add a user, and a green success toast is shown, but it obviously doesn't actually save.

To Reproduce
Steps to reproduce the behavior:

1. Add a table block for the Users table
2. Check Show button and select Show new row side panel
3. Publish and view app
4. Add a new user entry
5. See the green success toast and the user incorrectly appears to have been added

Expected behavior
If I try to add a row to the users table, I should see an error message indicating that I need to use user management, or the users API.
Or the table block should have a read-only mode and enable this if it detects the users table being used.

Screenshots
https://github.com/Budibase/budibase/assets/101575380/76ea886e-3c4b-49c1-838e-88f35cb0cdd5

_BUDI-7258

Also don't think this should be an option: