Add TOTP time skew section

[guardrex]

Description

Add the section because I feel like devs aren't going to see it in the main doc set with the complete Blazor coverage.

Add it to BOTH Blazor 2FA/TOTP articles.

Page URL

https://learn.microsoft.com/en-us/aspnet/core/blazor/security/webassembly/standalone-with-identity/qrcodes-for-authenticator-apps?view=aspnetcore-9.0

Content source URL

https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/blazor/security/webassembly/standalone-with-identity/qrcodes-for-authenticator-apps.md

Document ID

865f6063-bbe8-bf69-dd25-443bda125982

Article author

@guardrex

Metadata

• ID: 865f6063-bbe8-bf69-dd25-443bda125982
• Service: aspnet-core
• Sub-service: blazor

[github-actions]

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