fix: Templates version 4.13.1 do not update BlazorWeb-CSharp stylesheet name in App.Razor to the project name

[marqdouj]

🐛 Bug Report

When I create a new Fluent Blazor Web App project, there is a stylesheet listed in App.Razor that does not get updated to the project name.

💻 Repro or Code Sample

Create a new Fluent Blazor Web App; accept the default VS project name.
Open App.Razor and see this stylesheet listed:

BlazorWeb-CSharp.styles.css

🤔 Expected Behavior

The link should have been changed to:

MyProjectName.styles.css

😯 Current Behavior

💁 Possible Solution

🔦 Context

🌍 Your Environment

VS 2026 Insiders 11201.2
Fluent Templates 4.13.1