Distribute fixed version of the Windows WebView2 Runtime

[guardrex]

Fixes #29882

Matt ... I'm adding instructions for using and distributing a fixed version of the Windows WebView2 Runtime (per the issue's remarks by Beth), including steps for downloading, expanding, renaming, and setting up in the project. I believe that I have the steps correct with Copilot's assistance.

---

Internal previews

📄 File	🔗 Preview link
aspnetcore/blazor/hybrid/security/security-considerations.md	aspnetcore/blazor/hybrid/security/security-considerations

[Copilot]

Pull request overview

Adds step-by-step guidance to the Blazor Hybrid security considerations article for using/distributing a fixed-version Microsoft Edge WebView2 Runtime on Windows, expanding on the existing brief mention of Fixed Version distribution.

Changes:

• Adds cross-links from the “keep the Web View current” guidance to a new detailed Windows fixed-version WebView2 Runtime section.
• Introduces a new section with commands and project configuration snippets for extracting, packaging, and pointing the app at a fixed WebView2 runtime.
• Updates Windows WebView2 distribution wording to reference the new section.

[Copilot]

Pull request overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated 5 comments.