Added Chinese translation and performance upgrades

[igju359]

Could you upgrade it using Rust? Does it support Chinese? Even now, this software is still the easiest and most effective for image-based PDF books. AI is too cumbersome, expensive, and wears down your computer. It seems this software is better for text processing. AI seems to be focusing on images.

[FriedrichFroebel]

Could you upgrade it using Rust?

Given the recent activity, it is unlikely, especially since being a C++ project.

Does it support Chinese?

The GUI is not available in Chinese unless you create your own translation and use it in your build process.

[bezverec]

Rust refactor? Probably not.
Chinese translation is possible. As stated above, it is probably best you provide the translation (at least the TS file) yourself.

This repo is abandoned though. You might try your luck in some of the forks, perphaps the most popular one. However I think the forkers watch this repo closely :)