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

OpenArchival.Blazor/Components/Pages/About.razor

@@ -0,0 +1,36 @@
+@using Microsoft.Extensions.Options
+@using OpenArchival.Blazor.Config;
+
+@page "/about"
+
+<PageTitle>About</PageTitle>
+@if (string.IsNullOrEmpty(_htmlContent))
+{
+    <p>Loading content...</p> 
+}
+else
+{
+    @((MarkupString)_htmlContent)
+}
+
+@inject IOptions<ApplicationOptions> AppOptions;
+@code {
+    private string _htmlContent = $"<h1>HTML file not found for about page. Create one at /admin/aboutpageeditor</h1>";
+
+    protected override async void OnInitialized()
+    {
+        try
+        {
+            using var reader = new StreamReader(AppOptions.Value.AboutPageContentLocation);
+            _htmlContent = await reader.ReadToEndAsync(); 
+        }
+        catch (Exception ex)
+        {
+            _htmlContent = $"<h1>HTML file not found for homepage. Create one at /admin/aboutpageeditor</h1>";
+        }
+
+        StateHasChanged();
+    }
+
+}
+