RelayCommand generates code that violates CA1708

### Describe the bug

RelayCommand generates code that violates [CA1708](https://learn.microsoft.com/en-us/dotnet/fundamentals/code-analysis/quality-rules/ca1708)

```
private global::CommunityToolkit.Mvvm.Input.AsyncRelayCommand? editCommand;
public global::CommunityToolkit.Mvvm.Input.IAsyncRelayCommand EditCommand => editCommand ??= new global::CommunityToolkit.Mvvm.Input.AsyncRelayCommand(new global::System.Func(EditAsync), CanEdit);
```

but should be:

```
private global::CommunityToolkit.Mvvm.Input.AsyncRelayCommand? _editCommand;
public global::CommunityToolkit.Mvvm.Input.IAsyncRelayCommand EditCommand => _editCommand ??= new global::CommunityToolkit.Mvvm.Input.AsyncRelayCommand(new global::System.Func(EditAsync), CanEdit);
```

### Regression

_No response_

### Steps to reproduce

Set latest-recommended on project

The error happens on net9 onwards since analysislevel_9_recommended.global has the rule

```
# CA1708: Identifiers should differ by more than case
dotnet_diagnostic.CA1708.severity = warning
```

```
[RelayCommand(CanExecute = nameof(CanEdit))]
private async Task EditAsync() {}
```

### Expected behavior

Generated code be like suggested in CA1708 description:

```
private global::CommunityToolkit.Mvvm.Input.AsyncRelayCommand? _editCommand;
public global::CommunityToolkit.Mvvm.Input.IAsyncRelayCommand EditCommand => _editCommand ??= new global::CommunityToolkit.Mvvm.Input.AsyncRelayCommand(new global::System.Func(EditAsync), CanEdit);
```

### Screenshots

_No response_

### IDE and version

Rider

### IDE version

_No response_

### Nuget packages

- [ ] CommunityToolkit.Common
- [ ] CommunityToolkit.Diagnostics
- [ ] CommunityToolkit.HighPerformance
- [x] CommunityToolkit.Mvvm (aka MVVM Toolkit)

### Nuget package version(s)

8.4.0

### Additional context

_No response_

### Help us help you

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