Update WebBrowser.xml

[merriemcgaw]

Summary

Required note for accessibility compliance.

Describe your changes here.

Added a note indicating that the TabStop property should be set to false is there is not content to tab into.

[opbld31]

Docs Build status updates of commit e9e5341:

⚠️ Validation status: warnings

File	Status	Preview URL	Details
xml/System.Windows.Forms/WebBrowser.xml	⚠️Warning	View	Details

xml/System.Windows.Forms/WebBrowser.xml

• Line 0, Column 0: [Warning: xref-not-found] Cross reference not found: 'System.Windows.Forms.WebBrowser.TabStop'.

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[opbld34]

Docs Build status updates of commit 25d87e9:

✅ Validation status: passed

File	Status	Preview URL	Details
xml/System.Windows.Forms/WebBrowser.xml	✅Succeeded	View

For more details, please refer to the build report.

Note: Broken links written as relative paths are included in the above build report. For broken links written as absolute paths or external URLs, see the broken link report.

For any questions, please:

• Try searching the docs.microsoft.com contributor guides
• Post your question in the Docs support channel