Refactor data providers and update abstractions

- Removed obsolete data providers: `AnchorCollectionDataProvider`, `ContentsDataProvider`, and others, consolidating logic into new composable providers.
- Added `ComposeDataProviders`, `SelectDataProvider`, and `RelationalDataProvider` for improved flexibility and reusability.
- Introduced `IManySelectionComposableDataProvider` interface to support multiple-node selection.
- Enhanced `UnitDownloader` with more robust progress tracking.
- Updated package references and project dependencies for consistency.
- Improved error handling in `StealthConfig` initialization for better fallback on browser drivers.
- Incremented project version to 2.4.5.

Beam.Downloaders/SequentialDownloader.cs

@@ -44,8 +44,14 @@ namespace Beam.Downloaders {
             //Logger?.LogInformation("MoveNextAsync() \n\t -> Links.Current = {} ", LinksEnumerator.Current.Link.AbsoluteUri);
             links.Add(new Ordered<string>(LinksEnumerator.Current, LastOrder++));
 
-            while (LinksEnumerator.MoveNext() && !string.IsNullOrWhiteSpace(LinksEnumerator.Current) && links.Count < idealLinkCount)
+            while (links.Count < idealLinkCount && LinksEnumerator.MoveNext()) {
+                if (string.IsNullOrWhiteSpace(LinksEnumerator.Current)) {
+                    return false;
+                }
+                
                 links.Add(new Ordered<string>(LinksEnumerator.Current, LastOrder++));
+            }
+
             //Logger?.LogInformation("MoveNextAsync() \n\t -> links.Count = {} ", links.Count);
             if (links.Count == 0) {
                 Logger?.LogInformation("Out of links!");