Update the How To Use Docs page for freshness

[sdwheeler]

PR Summary

Update the How To Use Docs page for freshness

• Fixes AB#548360

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 "How to Use the PowerShell Documentation" page to reflect current features and UI changes, along with metadata updates for content freshness tracking.

Changes:

• Updated documentation content to describe current features like the "Ask Learn" button, "Focus mode" button, and improved navigation descriptions
• Replaced animated GIF images with static PNG screenshots for the PDF button and Previous Versions selector
• Added ms.update-cycle metadata to track content freshness (365-day default for most content, 3650-day for DSC overview)

Reviewed changes

Copilot reviewed 3 out of 10 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
reference/docs-conceptual/how-to-use-docs.md	Main content update with corrected descriptions, reorganized sections, and updated version information (removed "RC" designation from PowerShell 7.5)
reference/docs-conceptual/media/how-to-use-docs/pdf-button.png	New static PNG image replacing the animated GIF
reference/docs-conceptual/media/how-to-use-docs/previous-versions.png	New static PNG image replacing the animated GIF
reference/docs-conceptual/dsc/overview.md	Added ms.update-cycle metadata (3650-days)
reference/docfx.json	Added default ms.update-cycle metadata value (365-days) for all content

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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.

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[learn-build-service-prod]

Learn Build status updates of commit 661578e:

✅ Validation status: passed

File	Status	Preview URL	Details
reference/docfx.json	✅Succeeded
reference/docs-conceptual/dsc/overview.md	✅Succeeded	View (>=powershell-5.1)
reference/docs-conceptual/how-to-use-docs.md	✅Succeeded	View (>=powershell-5.1)
reference/docs-conceptual/media/how-to-use-docs/how-to-use.gif	✅Succeeded	View (>=powershell-5.1)
reference/docs-conceptual/media/how-to-use-docs/pdf-button.gif	✅Succeeded	n/a (file deleted or renamed)
reference/docs-conceptual/media/how-to-use-docs/pdf-button.png	✅Succeeded	View (>=powershell-5.1)
reference/docs-conceptual/media/how-to-use-docs/previous-versions.gif	✅Succeeded	n/a (file deleted or renamed)
reference/docs-conceptual/media/how-to-use-docs/previous-versions.png	✅Succeeded	View (>=powershell-5.1)
reference/docs-conceptual/media/how-to-use-docs/search-scope.gif	✅Succeeded	View (>=powershell-5.1)
reference/docs-conceptual/media/how-to-use-docs/version-search.gif	✅Succeeded	View (>=powershell-5.1)

For more details, please refer to the build report.