Update aws-sso documentation for Microsoft Integration

[Benbentwo]

what

• Update AWS SSO docs.
  • Update Microsoft since it changed to be Entra
  • Removing wording for "handoff to cloudposse" which was from an older period of our reference architecture
  • Fixes issue with code block on identity/deploy.mdx

Other Bugfix

Before

After

why

• More Clear instructions hopefully

[Copilot]

Pull Request Overview

This PR updates AWS SSO documentation to reflect Microsoft’s rebranding to Entra ID, removes outdated “handoff to CloudPosse” wording, and fixes an MDX code block error in the deploy guide.

• Enhance StepNumber component with an overrideNumber prop.
• Rename Microsoft 365/Office 365 references to Microsoft Entra ID across multiple docs.
• Correct MDX tag placement in deploy.mdx and improve AWS SSO guide with new Step markup.

Reviewed Changes

Copilot reviewed 6 out of 13 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/components/StepNumber/index.js	Added overrideNumber prop to allow manual step numbering.
docs/layers/identity/optional/optional.mdx	Introduced a new “Optional” components landing page.
docs/layers/identity/optional/aws-saml.mdx	Shortened “Identity Provider” to “IdP” and updated Microsoft tab.
docs/layers/identity/design-decisions/decide-on-idp.mdx	Renamed Office 365 label to Microsoft Entra ID for consistency.
docs/layers/identity/deploy.mdx	Fixed misplaced </Note> tag so AtmosWorkflow isn’t nested.
docs/layers/identity/aws-sso.mdx	Overhauled Microsoft section with Entra ID steps and StepNumber.

Comments suppressed due to low confidence (3)

docs/layers/identity/optional/aws-saml.mdx:55

• The link label mentions Microsoft Entra ID, but the URL path still references office-365. Consider updating the slug to match Entra ID for consistency.

        The setup for Microsoft Entra ID (formerly AzureAD) has a few issues that we've encountered. Please follow our [documentation on Microsoft Entra ID](/layers/identity/tutorials/how-to-setup-saml-login-to-aws-from-office-365/) to get the metadata file.

docs/layers/identity/aws-sso.mdx:177

• The heading level for 'Automatic Provisioning' was changed from ### to ##, which may disrupt the document hierarchy. Consider using ### to match the surrounding sections.

    ## Automatic Provisioning

docs/layers/identity/deploy.mdx:88

• The closing </Note> tag is indented differently than the opening <Note> tag. Align indentation to improve readability.

    </Note>