Reduce rigth new entry

[Ariel-GonzAguer]

Description

Creat a new entry for reduceRight() method of JavaScript.

Issue Solved

#7091

Type of Change

• Adding a new entry

Checklist

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

[Ariel-GonzAguer]

@mamtawardhani done! 🚀

[mamtawardhani]

Looks good for a second review! 🚀

[dakshdeepHERE]

LGTM 🚀

[github-actions]

👋 @Ariel-GonzAguer
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