API cross-links and other 9.0 updates

[guardrex]

Addresses #32091
Fixes #34012
Addresses #31909

---

Internal previews

Toggle expand/collapse

📄 File	🔗 Preview link
aspnetcore/blazor/blazor-ef-core.md	aspnetcore/blazor/blazor-ef-core
aspnetcore/blazor/call-web-api.md	aspnetcore/blazor/call-web-api
aspnetcore/blazor/components/js-spa-frameworks.md	aspnetcore/blazor/components/js-spa-frameworks
aspnetcore/blazor/components/lifecycle.md	aspnetcore/blazor/components/lifecycle
aspnetcore/blazor/components/quickgrid.md	aspnetcore/blazor/components/quickgrid
aspnetcore/blazor/components/render-modes.md	aspnetcore/blazor/components/render-modes
aspnetcore/blazor/components/rendering.md	aspnetcore/blazor/components/rendering
aspnetcore/blazor/forms/input-components.md	aspnetcore/blazor/forms/input-components
aspnetcore/blazor/fundamentals/environments.md	aspnetcore/blazor/fundamentals/environments
aspnetcore/blazor/fundamentals/signalr.md	aspnetcore/blazor/fundamentals/signalr
aspnetcore/blazor/fundamentals/startup.md	aspnetcore/blazor/fundamentals/startup
aspnetcore/blazor/globalization-localization.md	aspnetcore/blazor/globalization-localization
aspnetcore/blazor/security/blazor-web-app-with-entra.md	aspnetcore/blazor/security/blazor-web-app-with-entra
aspnetcore/blazor/security/blazor-web-app-with-oidc.md	aspnetcore/blazor/security/blazor-web-app-with-oidc
aspnetcore/blazor/security/server/index.md	aspnetcore/blazor/security/server/index
aspnetcore/blazor/security/webassembly/standalone-with-identity.md	aspnetcore/blazor/security/webassembly/standalone-with-identity
aspnetcore/blazor/tutorials/movie-database-app/index.md	aspnetcore/blazor/tutorials/movie-database-app/index
aspnetcore/blazor/tutorials/movie-database-app/part-4.md	aspnetcore/blazor/tutorials/movie-database-app/part-4
aspnetcore/fundamentals/tools/dotnet-aspnet-codegenerator.md	aspnetcore/fundamentals/tools/dotnet-aspnet-codegenerator
aspnetcore/release-notes/aspnetcore-9.0.md	aspnetcore/release-notes/aspnetcore-9.0