Another way to hide TabBar on NSTabView

[VirgilClyne]

Description

Another way to hide tabbar on NSTabView

TabView{}
        .introspect(.window, on: .macOS(.v15, .v26)) { window in
                guard let toolbar = window.toolbar else { return }
                for item in toolbar.items {
                    if item.label == "Navigation Tab Bar" {
                        // Remove border
                        item.isBordered = false
                        // Hide item instead of removing to avoid system recreation
                        item.view?.isHidden = true
                        // Set width to 0 using constraints to prevent occupying toolbar space
                        item.view?.widthAnchor.constraint(equalToConstant: 0).isActive = true
                    }
                }
            }

Checklist

• I have read the README before submitting this report.
• This issue hasn't been addressed in an existing GitHub issue or discussion.

Expected behavior

No response

Actual behavior

No response

Steps to reproduce

No response

Version information

No response

Destination operating system

No response

Xcode version information

No response

Swift Compiler version information

[VirgilClyne]

#457