Fix single line of Arabic text distortion

This is proposal for fixing a single Arabic line rendering issue, please check the following image

The original text is

After a refactoring of the code is made the text was rendered correctly but did not take the full available space

But by allow the user to change the max_chars in gpdf.conf from default 50 to for example in my case 110, the issue was fixed

This solution allowed me to figure out to fix the issue, as it has been proposed by the author of the package khaled-alshamaa/ar-php

When will this PR be merged? I am waiting for this PR as I am also facing this issue

Seems this issue still persists in the latest version! 🫤