Clarify that ForceDesignerDpiUnaware is supported only in .NET 6+ WinForms projects

[MFredX]

The Visual Studio documentation does not state that ForceDesignerDpiUnaware is supported only for Windows Forms projects targeting .NET 6 or later. This can mislead .NET Framework users into expecting the feature to work when it is not supported. Adding this clarification ensures accuracy and prevents confusion

Related discussion from Visual Studio Dev Community; https://developercommunity.visualstudio.com/t/ForceDesignerDpiUnaware-project-setting/10914254

[prmerger-automator]

@MFredX : Thanks for your contribution! The author(s) and reviewer(s) have been notified to review your proposed change.

[learn-build-service-prod]

Learn Build status updates of commit be6d8cc:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/designers/disable-dpi-awareness.md	✅Succeeded

For more details, please refer to the build report.

[ktoliver]

@ghogen

Can you review the proposed changes?

IMPORTANT: When the changes are ready for publication, adding a #sign-off comment is the best way to signal that the PR is ready for the review team to merge.

#label:"aq-pr-triaged"
@MicrosoftDocs/public-repo-pr-review-team

[ghogen]

@MFredX - excellent point, thanks for the contribution.

[learn-build-service-prod]

Learn Build status updates of commit 89008eb:

⚠️ Validation status: warnings

File	Status	Preview URL	Details
docs/azure/azure-deployment-using-github-actions.md	⚠️Warning		Details
docs/azure/overview-github-actions.md	⚠️Warning		Details
docs/designers/disable-dpi-awareness.md	✅Succeeded

docs/azure/azure-deployment-using-github-actions.md

• Line 48, Column 40: [Warning: bookmark-not-found - See documentation] Cannot find bookmark '#git-changes-window-in-visual-studio-2019' in 'version-control/git-with-visual-studio.md'.

docs/azure/overview-github-actions.md

• Line 45, Column 27: [Warning: bookmark-not-found - See documentation] Cannot find bookmark '#create-a-new-git-repository-in-visual-studio-2019' in 'version-control/git-with-visual-studio.md'.

For more details, please refer to the build report.

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