🐛 Fix web didn't has device name

DysonNetwork.Pass/Auth/AuthController.cs

@@ -48,6 +48,8 @@ public class AuthController(
         var ipAddress = HttpContext.Connection.RemoteIpAddress?.ToString();
         var userAgent = HttpContext.Request.Headers.UserAgent.ToString();
 
+        request.DeviceName ??= userAgent;
+
         // Trying to pick up challenges from the same IP address and user agent
         var existingChallenge = await db.AuthChallenges
             .Where(e => e.AccountId == account.Id)