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.Services/MailService.cs

@@ -984,6 +984,17 @@ namespace Wino.Services
         public Task<bool> IsMailExistsAsync(string mailCopyId)
             => Connection.ExecuteScalarAsync<bool>("SELECT EXISTS(SELECT 1 FROM MailCopy WHERE Id = ?)", mailCopyId);
 
+        public async Task<List<MailCopy>> GetExistingMailsAsync(Guid folderId, IEnumerable<MailKit.UniqueId> uniqueIds)
+        {
+            var localMailIds = uniqueIds.Where(a => a != null).Select(a => MailkitClientExtensions.CreateUid(folderId, a.Id)).ToArray();
+
+            var query = new Query(nameof(MailCopy))
+                            .WhereIn("Id", localMailIds)
+                            .GetRawQuery();
+
+            return await Connection.QueryAsync<MailCopy>(query);
+        }
+
         public Task<bool> IsMailExistsAsync(string mailCopyId, Guid folderId)
             => Connection.ExecuteScalarAsync<bool>("SELECT EXISTS(SELECT 1 FROM MailCopy WHERE Id = ? AND FolderId = ?)", mailCopyId, folderId);
     }