[React hook] useReducer()

[varlqk]

Description

• Added useReducer() hook for react
• Closes issue [Term Entry] React Hooks: .useReducer() #8253

Issue Solved

Type of Change

• Adding a new entry

Checklist

• All writings are my own.
• My entry follows the Codecademy Docs style guide.
• My changes generate no new warnings.
• I have performed a self-review of my own writing and code.
• I have checked my entry and corrected any misspellings.
• I have made corresponding changes to the documentation if needed.
• I have confirmed my changes are not being pushed from my forked main branch.
• I have confirmed that I'm pushing from a new branch named after the changes I'm making.
• I have linked any issues that are relevant to this PR in the Issues Solved section.

[CLAassistant]

All committers have signed the CLA.

[mamtawardhani]

Hey @varlqk, can you raise this PR again, but from a feature branch? This PR is on the main branch, so I'll have to close it. Please raise the PR on a feature branch and let me know when you do it 😄