Use truncated-partial-width-window-p in more places (bug#56815)

Use truncated-partial-width-window-p in more places (bug#56815)

* lisp/simple.el (line-move, line-move-finish):
Use truncated-partial-width-window-p.

* lisp/window.el (count-screen-lines, scroll-command--goto-goal-column):
Use truncated-partial-width-window-p.
(truncated-partial-width-window-p): Replace window-width with
window-total-width.

* src/indent.c (scan_for_column): Bring the logic of using
truncated-partial-width-window-p closer to what the display engine does.