refactor(redraw): no type argument in update_screen()

This was used in the past with assumption that curwin/curbuf
is "special" but this has not been true since basically forever
at this point.

Reduce NOT_VALID/CLEAR panic in options.lua . These should not
be set if an effect of the option is causing something
which by itself invokes redraw_later().

src/nvim/getchar.c

@@ -2601,7 +2601,7 @@ static int vgetorpeek(bool advance)
         // input buffer (e.g., termresponse).
         if (((State & MODE_INSERT) != 0 || p_lz) && (State & MODE_CMDLINE) == 0
             && advance && must_redraw != 0 && !need_wait_return) {
-          update_screen(0);
+          update_screen();
           setcursor();  // put cursor back where it belongs
         }