Remove duplicate RedirectManager injection in Blazor Web App ChangePassword template

[Copilot]

The Blazor Web App template's ChangePassword.razor file contained a duplicate dependency injection line that was accidentally added. The file had both:

@inject RedirectManager RedirectManager
@inject IdentityRedirectManager RedirectManager

This created a conflict where both lines were trying to inject into the same RedirectManager property, but only IdentityRedirectManager is actually registered in the dependency injection container.

Before:

@inject UserManager<ApplicationUser> UserManager
@inject SignInManager<ApplicationUser> SignInManager
@inject RedirectManager RedirectManager                    ← Duplicate/incorrect
@inject IdentityRedirectManager RedirectManager            ← Correct
@inject ILogger<ChangePassword> Logger

After:

@inject UserManager<ApplicationUser> UserManager
@inject SignInManager<ApplicationUser> SignInManager
@inject IdentityRedirectManager RedirectManager            ← Only correct line remains
@inject ILogger<ChangePassword> Logger

The fix removes the erroneous @inject RedirectManager RedirectManager line since:

• No RedirectManager type exists in the codebase
• Only IdentityRedirectManager is registered in DI (Program.cs)
• Other template files consistently use @inject IdentityRedirectManager RedirectManager
• All code references to RedirectManager continue to work unchanged

This is a minimal fix that resolves the template inconsistency while maintaining full functionality.

Fixes #63445.

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[Copilot]

Pull Request Overview

This PR removes a duplicate dependency injection line in the Blazor Web App template's ChangePassword.razor file. The file had two conflicting @inject directives trying to inject into the same RedirectManager property, causing a template inconsistency.

• Removes the incorrect @inject RedirectManager RedirectManager line
• Keeps the correct @inject IdentityRedirectManager RedirectManager line that matches the registered DI service
• Aligns the template with other files that consistently use IdentityRedirectManager

[oroztocil]

🚀

[javiercn]

/backport to release/10.0

[github-actions]

Started backporting to release/10.0: https://github.com/dotnet/aspnetcore/actions/runs/17271483739