File downloads article updates 8.0

[guardrex]

Fixes #30130

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aspnetcore/blazor/call-web-api.md	Call a web API from ASP.NET Core Blazor
aspnetcore/blazor/file-downloads.md	ASP.NET Core Blazor file downloads
aspnetcore/blazor/file-uploads.md	ASP.NET Core Blazor file uploads
aspnetcore/blazor/fundamentals/dependency-injection.md	aspnetcore/blazor/fundamentals/dependency-injection
aspnetcore/blazor/fundamentals/handle-errors.md	Handle errors in ASP.NET Core Blazor apps
aspnetcore/blazor/fundamentals/logging.md	ASP.NET Core Blazor logging
aspnetcore/blazor/fundamentals/routing.md	ASP.NET Core Blazor routing and navigation
aspnetcore/blazor/fundamentals/signalr.md	aspnetcore/blazor/fundamentals/signalr
aspnetcore/blazor/fundamentals/static-files.md	ASP.NET Core Blazor static files
aspnetcore/blazor/globalization-localization.md	ASP.NET Core Blazor globalization and localization
aspnetcore/blazor/security/server/threat-mitigation.md	Threat mitigation guidance for ASP.NET Core Blazor Server
aspnetcore/blazor/security/webassembly/additional-scenarios.md	ASP.NET Core Blazor WebAssembly additional security scenarios
aspnetcore/blazor/security/webassembly/index.md	aspnetcore/blazor/security/webassembly/index
aspnetcore/mvc/overview.md	Overview of ASP.NET Core MVC
aspnetcore/signalr/security.md	Security considerations in ASP.NET Core SignalR