How to select file in its directory in AppKit

Issue #407

https://developer.apple.com/documentation/appkit/nsworkspace/1524399-selectfile

In macOS 10.5 and later, this method does not follow symlinks when selecting the file. If the fullPath parameter contains any symlinks, this method selects the symlink instead of the file it targets. If you want to select the target file, use the resolvingSymlinksInPath method to resolve any symlinks before calling this method.

It is safe to call this method from any thread of your app.

NSWorkspace.shared.selectFile(
    url.path,
    inFileViewerRootedAtPath: url.deletingLastPathComponent().path)