Extracted some pages to their own assembly and finished the artifact display page code

OpenArchival.Blazor.AdminPages/Categories/ValidationModels/ArtifactGroupingRowElement.cs

@@ -0,0 +1,25 @@
+namespace OpenArchival.Blazor;
+
+public class ArtifactGroupingRowElement
+{
+    public required int Id { get; set; }
+
+    public required string ArtifactGroupingIdentifier { get; set; }
+
+    public required string CategoryName { get; set; }
+
+    public required string Title { get; set; }
+
+    public bool IsPublicallyVisible { get; set; }
+
+    public bool Equals(ArtifactGroupingRowElement? other)
+    {
+        if (other is null) return false;
+        if (ReferenceEquals(this, other)) return true;
+        return Id == other.Id; // Compare based on the unique Id
+    }
+
+    public override bool Equals(object? obj) => Equals(obj as ArtifactGroupingRowElement);
+
+    public override int GetHashCode() => Id.GetHashCode();
+}