Added a new Concept Entry for JS: Event Handling

[mamtawardhani]

Description

Added a new Concept Entry for JS: Event Handling

Issue Solved

Closes #6170

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.

[PragatiVerma18]

Hey, @mamtawardhani, thanks for adding this entry. I have a few suggestions. Please take a look at the comments and make the necessary changes. Let me know if you have any questions or need any help. Thanks.

[mamtawardhani]

Hey @PragatiVerma18, the changes are made. Thank you for the review 😄

[PragatiVerma18]

Hey @mamtawardhani, thanks for making the changes. This looks good to be merged! 🚀

[github-actions]

👋 @mamtawardhani
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