Expand description of PlainText setting

[sdwheeler]

PR Summary

Expand description of PlainText setting

• Fixes AB#593885

PR Checklist

• Descriptive Title: This PR's title is a synopsis of the changes it proposes.
• Summary: This PR's summary describes the scope and intent of the change.
• Contributor's Guide: I have read the contributor's guide.
• Style: This PR adheres to the style guide.

[Copilot]

Pull request overview

This PR updates the about_ANSI_Terminals documentation across PowerShell 7.4–7.7 to clarify what the PlainText $PSStyle.OutputRendering mode does (and does not) do, along with refreshing the ms.date metadata.

Changes:

• Updated ms.date to 07/02/2026 in the affected about_ANSI_Terminals topics.
• Expanded the PlainText description to clarify it is not a comprehensive terminal-control sanitization mechanism.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 4 comments.

File	Description
reference/7.7/Microsoft.PowerShell.Core/About/about_ANSI_Terminals.md	Updates ms.date and expands PlainText behavior description.
reference/7.6/Microsoft.PowerShell.Core/About/about_ANSI_Terminals.md	Updates ms.date and expands PlainText behavior description.
reference/7.5/Microsoft.PowerShell.Core/About/about_ANSI_Terminals.md	Updates ms.date and expands PlainText behavior description.
reference/7.4/Microsoft.PowerShell.Core/About/about_ANSI_Terminals.md	Updates ms.date and expands PlainText behavior description.

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[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

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[learn-build-service-prod]

Learn Build status updates of commit c411514:

✅ Validation status: passed

File	Status	Preview URL	Details
reference/7.4/Microsoft.PowerShell.Core/About/about_ANSI_Terminals.md	✅Succeeded	View (powershell-7.4)
reference/7.5/Microsoft.PowerShell.Core/About/about_ANSI_Terminals.md	✅Succeeded	View (powershell-7.5)
reference/7.6/Microsoft.PowerShell.Core/About/about_ANSI_Terminals.md	✅Succeeded	View (powershell-7.6)
reference/7.7/Microsoft.PowerShell.Core/About/about_ANSI_Terminals.md	✅Succeeded	View (powershell-7.7)

For more details, please refer to the build report.