[Feature]: Add Arabic font

需求描述 | Problem Statement

Hello,

I really appreciate your work on this program. I noticed that the available fonts do not properly support the Arabic language.

The current font options, such as Microsoft YaHei, STHeiti, Charm, and UTM Kabel, are mainly designed for other writing systems and do not provide proper Arabic letter shaping and right-to-left (RTL) text support.

Could you please consider adding Arabic-compatible fonts, such as Noto Sans Arabic, Cairo, or Tajawal, and ensure that the program properly supports Arabic RTL text and connected Arabic letters?

This would be very helpful for Arabic-speaking users and would make the program much more accessible internationally.

Thank you for your great work and for considering this improvement.

建议的解决方案 | Proposed Solution

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