Replace Linqpad-only methods and split into files (works except Hyperlinq)

Scraper/Extensions.cs

@@ -0,0 +1,9 @@
+namespace WordpressEboobScraper2.Scraper;
+
+public static class Extensions
+{
+    public static void Dump(this string str)
+    {
+        Console.Out.WriteLine(str);
+    }
+}