* lisp/tab-bar.el: Create new unique windows with 'C-x t n' (bug#54038).

* lisp/tab-bar.el: Create new unique windows with 'C-x t n' (bug#54038).

* lisp/tab-bar.el (tab-bar-new-tab-choice): Replace the value 'nil'
with explicit 'clone'.
(tab-bar-move-window-to-tab): Ignore possible side/atom window
parameters with ignore-window-parameters while deleting window.
(tab-bar-new-tab-to): When 'tab-bar-new-tab-choice' is 'clone',
create new unique windows with the same layout using window-state-get
and window-state-put.  Do the same after deleting other windows
when 'tab-bar-new-tab-choice' is 'window'.
(tab-bar-duplicate-tab): Replace the value 'nil' with 'clone' for
'tab-bar-new-tab-choice'.