Updated admin page to be more streamlined and added the beginning of the blogging features

OpenArchival.Blazor.CustomComponents/ChipContainer.razor

@@ -50,6 +50,9 @@
     [Parameter]
     public EventCallback<List<T>> ItemsChanged { get; set; }
 
+    [Parameter]
+    public EventCallback<T> ItemRemoved { get; set; }
+
     /// <summary>
     /// The RenderFragment that defines the custom input control.
     /// The 'context' is a reference to this component instance.
@@ -92,5 +95,6 @@
     {
         Items.Remove(item);
         await ItemsChanged.InvokeAsync(Items);
+        await ItemRemoved.InvokeAsync(item);
     }
 }