Prevent DI Configuration HttpClient from being overwritten on init

[GuidoNeele]

This change makes sure the Configuration is used that is supplied during DI.

At the moment the Configuration.HttpClient is being overwritten because ImageServiceBase.InitializeIfNeeded will always at least run once. The line below will always override the implementation done via DI since userDefinedConfig will always be null when it's initialized the first time.

FFImageLoading.Maui/source/FFImageLoading.Maui/Foundations/ImageServiceBase.cs

Line 124 in 408bdb6

var httpClient = userDefinedConfig.HttpClient ?? new HttpClient(new HttpClientHandler() { AutomaticDecompression = DecompressionMethods.All });

var ffilConfig = new FFImageLoading.Config.Configuration()
{
AllowUpscale = true,
DiskCacheDuration = TimeSpan.FromDays(AppData.CACHE_DURATION),
DiskCachePath = CreateDiskCachePath(),
HttpClient = new HttpClient(new AuthenticatedHttpImageClientHandler(SessionManagerStatic.GetAccessTokenAsync)),
HttpHeadersTimeout = HttpSettings.HttpHeadersTimeoutForImages,
HttpReadTimeout = HttpSettings.HttpReadTimeoutForImages
};
builder.Services.AddSingleton<FFImageLoading.Config.IConfiguration>(ffilConfig);

This should be the preferred way to configure FFImageLoading but at the moment it doesn't work because of the above issue.

[GuidoNeele]

Is this in consideration?