Feature Request: Option to Display Tab Indicator in the Window Title

[yavorski]

It would be great to have an option to display a tab indicator in the window title when tabs are hidden.

On smaller screens (e.g., 12/13" laptops), maximizing available space is essential, so hiding the tabs is a common choice.
Similarly, when using a window manager, it's common to hide all UI decorations for a cleaner workflow while utilising the title in your global bar.

Displaying the current tab index in the window title similar to how wezterm handles this would provide helpful context while keeping the interface minimal and space-efficient.

Attaching a screenshot illustrating the suggestion.

Thank you for considering this enhancement!