Renaming Notice to Notification

Longer, but what can we do...

BTCPayServer/Models/NotificationViewModels/IndexViewModel.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BTCPayServer.Models.NotificationViewModels
+{
+    public class IndexViewModel
+    {
+        public List<NoticeDataHolder> Items { get; set; }
+
+        public class NoticeDataHolder
+        {
+            public int Id { get; set; }
+            public string Body { get; set; }
+            public string Level { get; set; }
+            public DateTime Created { get; set; }
+        }
+    }
+}