feat: introduce new composable data providers and increment version

- Added `AnchorDataProvider`, `AnchorCollectionDataProvider`, `ContentsDataProvider`, `ContentsArrayDataProvider`, `DropDownDataProvider`, `ListContentDataProvider`, and `ParagraphedContentDataProvider` for enhanced data extraction flexibility.
- Updated project version to 2.5.0.

Beam.Dynamic/DataProviders/DropDownDataProvider.cs

@@ -0,0 +1,59 @@
+using HtmlAgilityPack;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Runtime.InteropServices.Marshalling;
+using System.Text;
+using System.Text.Json;
+using System.Threading.Tasks;
+using Beam.Abstractions;
+
+namespace Beam.Dynamic;
+
+public class DropDownDataProvider : IComposableDataProvider<string>, IComposableDataProvider<string[]> {
+    public IBinding? Content { get; set; }
+    public Uri? RelativeTo { get; set; }
+
+    public string[] Get(HtmlDocument document) {
+        if (Content is null)
+            return [];
+        var node = Select(document);
+        if (node is null)
+            return [];
+        return Get(node);
+    }
+
+    string IDataProvider<string>.Get(HtmlDocument document) {
+        var node = Select(document);
+        return node is null ? "" : (this as IComposableDataProvider<string>).Get(node);
+    }
+
+    public string[] Get(HtmlNode node) {
+        List<string> links = [];
+        foreach (var child in node.ChildNodes.Where(x => x.Name == "option")) {
+            var childValue = child.GetAttributeValue("value", null);
+            if (!Uri.TryCreate(RelativeTo, childValue, out var uri))
+                continue;
+            links.Add(uri.AbsoluteUri);
+        }
+
+        return links.ToArray();
+    }
+
+    string IComposableDataProvider<string>.Get(HtmlNode node) {
+        return JsonSerializer.Serialize(Get(node));
+    }
+    
+    public HtmlNode? Select(HtmlDocument doc) {
+        return Content?.Select(doc);
+    }
+
+    HtmlNode? IComposableDataProvider<string[]>.Select(HtmlNode node) {
+        return node;
+    }
+
+    HtmlNode? IComposableDataProvider<string>.Select(HtmlNode node) {
+        return node;
+    }
+}