Fix couple potential crash issues due to unsupported APIs.

Wino.Core.UWP/Services/NotificationBuilder.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
 using CommunityToolkit.WinUI.Notifications;
+using Serilog;
 using Windows.Data.Xml.Dom;
 using Windows.UI.Notifications;
 using Wino.Core.Domain;
@@ -38,6 +39,8 @@ namespace Wino.Core.UWP.Services
         {
             var mailCount = downloadedMailItems.Count();
 
+            try
+            {
                 // If there are more than 3 mails, just display 1 general toast.
                 if (mailCount > 3)
                 {
@@ -70,8 +73,8 @@ namespace Wino.Core.UWP.Services
 
                     foreach (var mailItem in validItems)
                     {
-                    //if (mailItem.IsRead)
-                    //    continue;
+                        if (mailItem.IsRead)
+                            continue;
 
                         var builder = new ToastContentBuilder();
                         builder.SetToastScenario(ToastScenario.Default);
@@ -117,6 +120,11 @@ namespace Wino.Core.UWP.Services
                     await UpdateTaskbarIconBadgeAsync();
                 }
             }
+            catch (Exception ex)
+            {
+                Log.Error(ex, "Failed to create notifications.");
+            }
+        }
 
         private ToastButton GetDismissButton()
             => new ToastButton()
@@ -142,10 +150,10 @@ namespace Wino.Core.UWP.Services
         public async Task UpdateTaskbarIconBadgeAsync()
         {
             int totalUnreadCount = 0;
-            var badgeUpdater = BadgeUpdateManager.CreateBadgeUpdaterForApplication();
 
             try
             {
+                var badgeUpdater = BadgeUpdateManager.CreateBadgeUpdaterForApplication();
                 var accounts = await _accountService.GetAccountsAsync();
 
                 foreach (var account in accounts)
@@ -178,11 +186,9 @@ namespace Wino.Core.UWP.Services
                 else
                     badgeUpdater.Clear();
             }
-            catch (System.Exception ex)
+            catch (Exception ex)
             {
-                // TODO: Log exceptions.
-
-                badgeUpdater.Clear();
+                Log.Error(ex, "Error while updating taskbar badge.");
             }
         }