Added setting to turn off login experience v2

[dcaro]

[learn-build-service-prod[bot]]

Learn Build status updates of commit 96075e5:

:white_check_mark: Validation status: passed

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docs-ref-conceptual/authenticate-azure-cli-interactively.md	:white_check_mark:Succeeded	View

For more details, please refer to the build report.

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[learn-build-service-prod[bot]]

Learn Build status updates of commit bf80efb:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
docs-ref-conceptual/authenticate-azure-cli-interactively.md	:white_check_mark: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

[dbradish-microsoft]

Merged after discussion with @dcaro