Consider to remove the `Injection` of `IFileSaver` and `IFilePicker`

[AndreasReitberger]

SharedMauiCoreLibrary/src/SharedMauiCoreLibrary/Hosting/AppHostBuilderExtensions.cs

Line 38 in 99737bf

public static MauiAppBuilder ConfigureFileServices(this MauiAppBuilder builder)

        public static MauiAppBuilder ConfigureFileServices(this MauiAppBuilder builder)
        {
            builder.Services.AddSingleton<IFileSaver>(FileSaver.Default);
            builder.Services.AddSingleton<ILauncher>(Launcher.Default);
            builder.Services.AddSingleton<IFilePicker>(FilePicker.Default);
            return builder;
        }

Those are also provided by the CommunityToolkit.
Docs: https://learn.microsoft.com/de-de/dotnet/communitytoolkit/maui/essentials/file-saver?tabs=windows