feat: selected realm stored in browser's local storage

WotBlitzStatisticsPro.Blazor/Messages/ChangeCurrentRealmTypeMessage.cs

@@ -0,0 +1,15 @@
+using MediatR;
+using WotBlitzStatisticsPro.Blazor.GraphQl;
+
+namespace WotBlitzStatisticsPro.Blazor.Messages
+{
+    public class ChangeCurrentRealmTypeMessage: INotification
+    {
+        public RealmType RealmType { get; }
+
+        public ChangeCurrentRealmTypeMessage(RealmType realmType)
+        {
+            RealmType = realmType;
+        }
+    }
+}