Add "Security considerations" section to high-quality plugins article

[erikadoyle]

Include guidance for URL-based dialogs on preparing for 3rd party cookie deprecation

[acrolinxatmsft1]

Acrolinx Scorecards

We currently enforce a minimum score of 80.

Click the scorecard links for each article to review the Acrolinx feedback on grammar, spelling, punctuation, writing style, and terminology:

Article	Score	Issues	Scorecard	Processed
msteams-platform/messaging-extensions/high-quality-message-extension.md	91	22	link	✅

More info about Acrolinx

Use the Acrolinx extension, or sidebar, in Visual Studio Code to check spelling, grammar, style, tone, clarity, and key terminology when you're creating or updating content. For more information, see Use the Visual Studio Code extension to run Acrolinx locally.

[learn-build-service-prod]

Learn Build status updates of commit 99a128e:

✅ Validation status: passed

File	Status	Preview URL	Details
msteams-platform/messaging-extensions/high-quality-message-extension.md	✅Succeeded	View

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[acrolinxatmsft1]

Acrolinx Scorecards

We currently enforce a minimum score of 80.

Click the scorecard links for each article to review the Acrolinx feedback on grammar, spelling, punctuation, writing style, and terminology:

Article	Score	Issues	Scorecard	Processed
msteams-platform/messaging-extensions/high-quality-message-extension.md	91	22	link	✅

More info about Acrolinx

Use the Acrolinx extension, or sidebar, in Visual Studio Code to check spelling, grammar, style, tone, clarity, and key terminology when you're creating or updating content. For more information, see Use the Visual Studio Code extension to run Acrolinx locally.

[learn-build-service-prod]

Learn Build status updates of commit e85fbe5:

✅ Validation status: passed

File	Status	Preview URL	Details
msteams-platform/messaging-extensions/high-quality-message-extension.md	✅Succeeded	View

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel