## Problem
The Docs feedback modal still uses the old `Form` component with
`formik`
## Solution
Migrate it to `react-hook-form`
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
* **Improvements**
* Enhanced feedback form with schema-driven validation requiring title
and comment before submission.
* Submission buttons disable while submitting; cancel now also resets
the form state.
* **Chores**
* Added form handling and validation libraries to support the improved
feedback experience.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->