feat: implemented Mediator and added dialog service

WotBlitzStatisticsPro.Blazor/Services/SearchDialogService.cs

@@ -0,0 +1,35 @@
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using MediatR;
+using Radzen;
+using WotBlitzStatisticsPro.Blazor.Messages;
+using WotBlitzStatisticsPro.Blazor.Model;
+using WotBlitzStatisticsPro.Blazor.Pages;
+
+namespace WotBlitzStatisticsPro.Blazor.Services
+{
+    public class SearchDialogService: ISearchDialogService, INotificationHandler<OpenSearchDialogMessage>
+    {
+
+        private readonly DialogService _dialogService;
+
+        public SearchDialogService(DialogService dialogService)
+        {
+            _dialogService = dialogService;
+        }
+
+
+        public async Task OpenSearchDialog(DialogType type)
+        {
+            await _dialogService.OpenAsync<SearchDialog>($"Search",
+                new Dictionary<string, object>() { { "DialogType", type } },
+                new DialogOptions() { Width = "300px", Height = "530px" });
+        }
+
+        public Task Handle(OpenSearchDialogMessage notification, CancellationToken cancellationToken)
+        {
+            return OpenSearchDialog(notification.Type);
+        }
+    }
+}