[Term Entry] Scenario Mapping

[AnamolR]

Description

This PR adds a new UX design method entry titled Scenario Mapping to the uiux/concepts/scenario-mapping/ section.

New folder: content/uiux/concepts/scenario-mapping/
Markdown file: scenario-mapping.md introduces the concept of scenario mapping, defines what a UX scenario is, and explains how the method supports user-centered design, cross-functional alignment, and prioritization of product features.

This entry is written in line with the Codecademy Docs style and complements other research and strategy tools such as user flows, journey maps, and design thinking practices.

Issues Solved

Closes #6597

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.

[Sriparno08]

Thanks for contributing to Codecademy Docs, @AnamolR!

This entry looks good for a second round of review. 🚀