[base-ui][FormControl] Export FormControlOwnerState type from FormControl

[michaeldfoley]

Steps to reproduce

Link to live example: (required)
https://codesandbox.io/p/sandbox/kind-shockley-sxl7d8?file=%2Fsrc%2FDemo.tsx%3A21%2C1

Steps:

1. Try to import FormControlOwnerState from @mui/base/FormControl or @mui/base

Current behavior

The type is not available to import unless you drill into @mui/base/FormControl/FormControl.types

Expected behavior

The *OwnerState type should be exported from the index file as it is with other components like Button, Input, Select, Modal, etc.

Context

I need to pass a function to slotProps.root to utilize the FormControl state. I would like to type the function parameter (FormControlOwnerState) but it's not being exported from the index file at the moment.

Your environment

npx @mui/envinfo

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  Output from `npx @mui/envinfo` goes here.

Search keywords: FormControlOwnerState, FormControl, slotProps