Update "Experimental in DevTools" for Canary 140 & Stable 138

[mikehoffms]

Rendered article for review:

• Experimental features in Microsoft Edge DevTools
  • /devtools-guide-chromium/experimental-features/index.md
  • Internal preview: https://review.learn.microsoft.com/microsoft-edge/devtools/experimental-features/index?branch=pr-en-us-3501#enable-vertical-drawer-configuration
  • External preview: https://github.com/MicrosoftDocs/edge-developer/blob/user/mikehoffms/experimental-jul-2025/microsoft-edge/devtools/experimental-features/index.md#enable-vertical-drawer-configuration
  • Before/live: https://learn.microsoft.com/microsoft-edge/devtools/experimental-features/
  • Updated to latest Canary & then latest Stable.

AB#58280442

[learn-build-service-prod]

Learn Build status updates of commit 3142907:

✅ Validation status: passed

File	Status	Preview URL	Details
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microsoft-edge/devtools/performance/reference.md	✅Succeeded	View

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[mikehoffms]

LGTM - Writer/Editor

[learn-build-service-prod]

Learn Build status updates of commit f4d3291:

✅ Validation status: passed

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microsoft-edge/devtools/performance/reference.md	✅Succeeded	View

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[learn-build-service-prod]

Learn Build status updates of commit 4e4fb29:

✅ Validation status: passed

File	Status	Preview URL	Details
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microsoft-edge/devtools/performance/reference.md	✅Succeeded	View

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[learn-build-service-prod]

Learn Build status updates of commit 9a03ffc:

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microsoft-edge/devtools/performance/reference.md	✅Succeeded	View

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[learn-build-service-prod]

Learn Build status updates of commit 174cb15:

✅ Validation status: passed

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microsoft-edge/devtools/performance/reference.md	✅Succeeded	View

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Learn Build status updates of commit d492329:

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microsoft-edge/devtools/performance/reference.md	✅Succeeded	View

For more details, please refer to the build report.