Fix tab-bar-format-align-right to not call tab-bar-format-global twice

Fix tab-bar-format-align-right to not call tab-bar-format-global twice

* lisp/tab-bar.el (tab-bar-format-align-right): Add optional arg 'rest'
to handle it specially in 'tab-bar-format-list'.  Use the value from 'rest'
instead of calling format functions twice by 'tab-bar-format-list'.
(tab-bar-format-list): When 'format-list' contains the item
'tab-bar-format-align-right', collect the rest of formatted items
and call 'tab-bar-format-align-right' explicitly with the collected
list (bug#78953).

(cherry picked from commit 8b1978fa6e929101b6a766cfbb94c3b27b142fa7)