Add additional SignalR configuration

[guardrex]

A couple of items to address:

• Timed-out connections: See https://github.com/dotnet/aspnetcore/issues/42778#issuecomment-1188852129 for content to add. The serverTimeout/serverTimeoutInMilliseconds settings are in the SignalR config doc, which is cross-linked, but we don't mention a Blazor.start config specifically outside of configureLogging for configureSignalR. Add a section on this subject, possibly via an INCLUDE file so that I can be posted to the Host and Deploy SignalR content and to the Blazor SignalR config article. Also, the configureSignalR with Blazor.start aspect should be mentioned very early, right at the top of the doc where the cross-link to SignalR config doc is provided.
• While here, we need better cross-linking for Host and Deploy SignalR content to the Blazor SignalR config content, possibly also doubling the sticky sessions config coverage with an INCLUDE.

Cross-ref: https://docs.microsoft.com/en-us/aspnet/core/blazor/host-and-deploy/server?view=aspnetcore-6.0#signalr-configuration

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Document Details

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• ID: 0969556b-b77e-bdb8-8e20-fd6971be0c25
• Version Independent ID: d17e4c28-ea82-0dd8-295d-19f6ada147ea
• Content: ASP.NET Core Blazor SignalR guidance
• Content Source: aspnetcore/blazor/fundamentals/signalr.md
• Product: aspnet-core
• Technology: aspnetcore-fundamentals
• GitHub Login: @guardrex
• Microsoft Alias: riande