When the screen is split vertically, the calculation postion is wrong

[jadestrong]

https://github.com/sebastiencs/company-box/blob/c4f2e243fba03c11e46b1600b124e036f2be7691/company-box.el#L603C22-L603C46

Maybe here should use p-y-abs ?:

                      (<= (- mode-line-y p-y-abs) (+ char-height height))