Final Blazor NRT pass

[guardrex]

This issue tracks the final round of NRT work for Blazor doc examples. Snippet sample apps have been addressed, sans one EF Core-Blazor Server sample NRT 😈 to address. This issue will be worked post 6.0 GA but hopefully 🤞 prior to the 🎁 holiday break ⛄. The remaining NRTs are mostly part of inline doc examples, some of which are candidates for inclusion in the sample apps as part of this effort (but probably only for the 6.0 snippet sample).

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Document Details

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• ID: d31248d7-d2c2-1a17-3173-889a0d9bb6e8
• Version Independent ID: 6f27ff37-6b3a-57f5-353a-5cf5aabba7cf
• Content: ASP.NET Core Blazor project structure
• Content Source: aspnetcore/blazor/project-structure.md
• Product: aspnet-core
• Technology: aspnetcore-blazor
• GitHub Login: @guardrex
• Microsoft Alias: riande

[guardrex]

Replaced by #23844.