Fix the broken doc-site example - Custom input with popper positioning

[balajis-qb]

Description

This PR introduces the useRef hook to the global context of the LiveProvider, allowing for better management of references within the example components. The change fix the example - Custom input with popper positioning.

Problem
The doc-site example Custom input with popper positioning uses useRef hook, but the hook was not imported.

Changes

• Added useRef hook to the global context of the LiveProvider

Screenshots

Issue

After the fix

Contribution checklist

• I have followed the contributing guidelines.
• I have formatted my code with Prettier and checked for linting issues with ESLint for code readability.