Recreated solution with web app template. Improved theme. Switched to ShadcnBlazor library

Moonlight.Frontend/Services/RemoteAuthProvider.cs

@@ -0,0 +1,47 @@
+using System.Net;
+using System.Net.Http.Json;
+using System.Security.Claims;
+using Microsoft.AspNetCore.Components.Authorization;
+using Microsoft.Extensions.Logging;
+using Moonlight.Shared.Http.Responses.Auth;
+
+namespace Moonlight.Frontend.Services;
+
+public class RemoteAuthProvider : AuthenticationStateProvider
+{
+    private readonly ILogger<RemoteAuthProvider> Logger;
+    private readonly HttpClient HttpClient;
+
+    public RemoteAuthProvider(ILogger<RemoteAuthProvider> logger, HttpClient httpClient)
+    {
+        Logger = logger;
+        HttpClient = httpClient;
+    }
+
+    public override async Task<AuthenticationState> GetAuthenticationStateAsync()
+    {
+        try
+        {
+            var claimResponses = await HttpClient.GetFromJsonAsync<ClaimResponse[]>(
+                "api/auth/claims", Constants.SerializerOptions
+            );
+
+            var claims = claimResponses!.Select(claim => new Claim(claim.Type, claim.Value));
+
+            return new AuthenticationState(
+                new ClaimsPrincipal(new ClaimsIdentity(claims, "remote"))
+            );
+        }
+        catch (HttpRequestException e)
+        {
+            if (e.StatusCode != HttpStatusCode.Unauthorized)
+                Logger.LogError(e, "An api error occured while requesting claims from api");
+        }
+        catch (Exception e)
+        {
+            Logger.LogError(e, "An unhandled error occured while requesting claims from api");
+        }
+
+        return new AuthenticationState(new ClaimsPrincipal());
+    }
+}