Fix generation of mouse position lists on the tool and tab bars

Fix generation of mouse position lists on the tool and tab bars

* src/keyboard.c (make_lispy_tty_position): Return whether an
internal border was hit.
(make_lispy_position): Only skip standard window and frame
detection process if so, as there are other scenarios where POSN
is nil but WINDOW_OR_FRAME is none the less expected to be
provided by the conditionals skipped.

(cherry picked from commit 5a4b9ca7364f225eff9b134ff06a49c46179366e)