MudInput: Dispose iOS Blur With Error Handling

[versile2]

Description

Resolves #11434
Move actual JS call to DisposeAsync method so I can use InvokeVoidAsyncWithErrorHandling suppressing error messages when circuit is disconnected.

How Has This Been Tested?

BSS with Docs.Server, WASM with UnitTests.Viewer

Type of Changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation (fix or improvement to the website or code docs)

Checklist

• The PR is submitted to the correct branch (dev).
• My code follows the code style of this project.
• I've added relevant tests.

[sonarqubecloud]

Quality Gate failed

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C Maintainability Rating on New Code (required ≥ A)

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[Copilot]

Pull Request Overview

This PR refactors the disposal logic in MudInput to use InvokeVoidAsyncWithErrorHandling for the iOS blur event teardown, suppressing errors when the Blazor circuit is disconnected, and marks the old helper as obsolete.

• Marks MudDetachBlurEventWithJS as obsolete in ElementReferenceExtensions
• Replaces the old blur-detach helper call in MudInput.razor.cs with an error-handling JS invocation
• Retains auto-grow destruction logic under the same error-handling approach

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
ElementReferenceExtensions.cs	Added [Obsolete] to old blur-detach helper and updated its message
MudInput.razor.cs	Moved blur-detach JS call into DisposeAsyncCore using error handling

Comments suppressed due to low confidence (1)

src/MudBlazor/Components/Input/MudInput.razor.cs:376

• Add or extend unit tests to cover the new disposal path, verifying that removeOnBlurEvent is invoked correctly and errors are properly suppressed when the JS runtime is disconnected.

protected override async ValueTask DisposeAsyncCore()

[versile2]

@ScarletKuro Anything I need on this one?

[danielchalmers]

I think we could merge this and release v8.8.0 shortly after. Got enough changes ready for it