Patterns for applying authz across Blazor apps

[guardrex]

Fixes #24473

Updates ASP.NET Core documentation to describe patterns for requiring authorization across Blazor hosting models (server-side vs WebAssembly), with cross-links from the general authorization docs and related Blazor security pages.

Stephen ... Some guesses and draft language here as usual, including for section headings. Also, let me know which section should appear first (fallback policy with anonymous access holes or securing individual/groups of endpoints), and I'd like to mark your recommended approach for readers.

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Internal previews

File	Preview link
aspnetcore/blazor/fundamentals/static-files.md	aspnetcore/blazor/fundamentals/static-files
aspnetcore/blazor/security/additional-scenarios.md	aspnetcore/blazor/security/additional-scenarios
aspnetcore/blazor/security/index.md	aspnetcore/blazor/security/index
aspnetcore/blazor/security/webassembly/index.md	aspnetcore/blazor/security/webassembly/index
aspnetcore/security/authorization/introduction.md	aspnetcore/security/authorization/introduction

[Copilot]

Pull request overview

Updates ASP.NET Core documentation to describe patterns for requiring authorization across Blazor hosting models (server-side vs WebAssembly), with cross-links from the general authorization docs and related Blazor security pages.

Changes:

• Adds a new “Patterns to require authorization” section for server-side Blazor apps (including guidance for fallback policy + AllowAnonymous and static assets considerations).
• Updates Blazor WebAssembly security guidance to frame authorization as patterns and clarifies fallback policy limitations for WASM.
• Standardizes wording around _Imports.razor (as “imports file”), refreshes metadata dates, and adds cross-links from the authorization introduction page.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
aspnetcore/security/authorization/simple.md	Small wording tweak describing applying [Authorize] via imports file.
aspnetcore/security/authorization/introduction.md	Updates ms.date, improves namespace section with API xrefs, and adds links to Blazor authorization patterns.
aspnetcore/mvc/views/razor.md	Updates note wording around the imports file used for @rendermode shorthand.
aspnetcore/blazor/security/webassembly/index.md	Renames/reshapes the “require authorization” section into patterns and clarifies fallback policy limitations in WASM.
aspnetcore/blazor/security/index.md	Adds links to the new authorization-pattern sections and updates ms.date.
aspnetcore/blazor/security/additional-scenarios.md	Adds a substantial new section describing global vs local authorization patterns for server-side Blazor, plus metadata/title updates.
aspnetcore/blazor/globalization-localization.md	Standardizes wording around _Imports.razor references.
aspnetcore/blazor/components/render-modes.md	Standardizes wording around _Imports.razor references.

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[wadepickett]

@guardrex: Aproved but see my very minor suggestion inline.