IMAP Improvements (#558)

* Fixing an issue where scrollviewer overrides a part of template in mail list. Adjusted zoomed out header grid's corner radius.

* IDLE implementation, imap synchronization strategies basics and condstore synchronization.

* Adding iCloud and Yahoo as special IMAP handling scenario.

* iCloud special imap handling.

* Support for killing synchronizers.

* Update privacy policy url.

* Batching condstore downloads into 50, using SORT extension for searches if supported.

* Bumping some nugets. More on the imap synchronizers.

* Delegating idle synchronizations to server to post-sync operations.

* Update mailkit to resolve qresync bug with iCloud.

* Fixing remote highest mode seq checks for qresync and condstore synchronizers.

* Yahoo custom settings.

* Bump google sdk package.

* Fixing the build issue....

* NRE on canceled token accounts during setup.

* Server crash handlers.

* Remove ARM32. Upgrade server to .NET 9.

* Fix icons for yahoo and apple.

* Fixed an issue where disabled folders causing an exception on forced sync.

* Remove smtp encoding constraint.

* Remove commented code.

* Fixing merge conflict

* Addressing double registrations for mailkit remote folder events in synchronizers.

* Making sure idle canceled result is not reported.

* Fixing custom imap server dialog opening.

* Fixing the issue with account creation making the previously selected account as selected as well.

* Fixing app close behavior and logging app close.

Wino.Server/ServerContext.cs

@@ -42,7 +42,8 @@ namespace Wino.Server
         IRecipient<ServerTerminationModeChanged>,
         IRecipient<AccountSynchronizationProgressUpdatedMessage>,
         IRecipient<AccountFolderConfigurationUpdated>,
-        IRecipient<CopyAuthURLRequested>
+        IRecipient<CopyAuthURLRequested>,
+        IRecipient<NewMailSynchronizationRequested>
     {
         private readonly System.Timers.Timer _timer;
         private static object connectionLock = new object();
@@ -140,6 +141,7 @@ namespace Wino.Server
         public async void Receive(AccountFolderConfigurationUpdated message) => await SendMessageAsync(MessageType.UIMessage, message);
 
         public async void Receive(CopyAuthURLRequested message) => await SendMessageAsync(MessageType.UIMessage, message);
+        public async void Receive(NewMailSynchronizationRequested message) => await SendMessageAsync(MessageType.UIMessage, message);
 
         #endregion
 
@@ -321,6 +323,9 @@ namespace Wino.Server
 
                     KillServer();
                     break;
+                case nameof(KillAccountSynchronizerRequested):
+                    await ExecuteServerMessageSafeAsync(args, JsonSerializer.Deserialize<KillAccountSynchronizerRequested>(messageJson, _jsonSerializerOptions));
+                    break;
                 default:
                     Debug.WriteLine($"Missing handler for {typeName} in the server. Check ServerContext.cs - HandleServerMessageAsync.");
                     break;