v14.1.13908

• Item ID is now long value (8 byte) in instead of 16-byte array in all synchronization collection samples.
• If file is deleted, moved or renamed the project failed to run in VS Code. Now App_Data folder is removed from project.
• resource-id header is now added to PUT response headers in sample code and code generated by Visual Studio WebDAV wizard.
• "Object reference not set" exception is thrown when sync id was not found during files and folders delete operations in collection synchronization sample WebDAVServer.FileSystemSynchronization.AspNetCore and code generated by Visual Studio wizard with file system back-end.
• Collection synchronization sample now return metadata-Etag property for each item, indicating if file metadata has changed.
• React UI front-end flicker on refresh or any notifications from server. This bug is now fixed.