docs: sort settings list A-Z

[Anshumancanrock]

Description

This PR reorders the Settings table in CONFIGURATION.md alphabetically (A-Z) to reduce merge conflicts and make entries easier to find.

It also adds a short note asking contributors to keep the table sorted when adding new settings.

Related Issue

Maintainer request from group discussion of this PR #493

Motivation and Context

The settings list had grown and was not strictly ordered, which made updates noisy and more conflict-prone.
Keeping it A-Z makes future documentation updates predictable for contributors and reviewers.

How Has This Been Tested?

• Verified the Settings table order is strictly alphabetical by key name.
• Verified no setting keys were removed or added during the reorder (same count before and after).

Screenshots (if appropriate):

N/A (documentation-only change).

Types of changes

• Non-functional change (docs, style, minor refactor)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my code changes.
• All new and existing tests passed.

[coveralls]

coverage: 68.036% (-0.04%) from 68.078% — Anshumancanrock:docs/configuration-settings-az into cameri:main