Added theme saving. Added interfaces for overview pages. Renamed sidebar interface function

Moonlight.Client/UI/Views/Admin/Index.razor

@@ -1,15 +1,34 @@
 @page "/admin"
-@using Moonlight.Client.Services
 
-@inject DownloadService DownloadService
+@using MoonCore.Helpers
+@using Moonlight.Client.Interfaces
 
-<WButton OnClick="OnClick">Test DownloadService</WButton>
+@inject IEnumerable<IAdminOverviewElementProvider> ElementProviders
+
+<div class="grid grid-cols-12">
+    @foreach (var render in Renders)
+    {
+        @render
+    }
+</div>
 
 @code
 {
-    private async Task OnClick(WButton _)
+    private RenderFragment[] Renders;
+
+    protected override void OnInitialized()
     {
-        await DownloadService.DownloadString("test.txt", "Download seems to be working");
+        var renders = new List<RenderFragment>();
+
+        var elementTypes = new List<Type>();
+
+        foreach (var elementProvider in ElementProviders)
+            elementProvider.ModifyOverview(elementTypes);
+
+        foreach (var elementType in elementTypes)
+            renders.Add(ComponentHelper.FromType(elementType));
+        
+        Renders = renders.ToArray();
     }
 }