IDLE implementation, imap synchronization strategies basics and condstore synchronization.

Wino.Core/Requests/Folder/EmptyFolderRequest.cs

@@ -11,6 +11,7 @@ namespace Wino.Core.Requests.Folder
 {
     public record EmptyFolderRequest(MailItemFolder Folder, List<MailCopy> MailsToDelete) : FolderRequestBase(Folder, FolderSynchronizerOperation.EmptyFolder), ICustomFolderSynchronizationRequest
     {
+        public bool ExcludeMustHaveFolders => false;
         public override void ApplyUIChanges()
         {
             foreach (var item in MailsToDelete)

Wino.Core/Requests/Folder/MarkFolderAsReadRequest.cs

@@ -32,5 +32,7 @@ namespace Wino.Core.Requests.Folder
         }
 
         public List<Guid> SynchronizationFolderIds => [Folder.Id];
+
+        public bool ExcludeMustHaveFolders => true;
     }
 }