[Feature request] Kaku (android app) like features when capturing screen

[Sonotoki-da]

Thank you all for this app. Running smoothly in my Manjaro Gnome 44.

It'd be good for better OCR if we add a feature to mess with image properties, like brightness and etc. after capturing. Check out the Kaku for that feature. I don't think we need the built-in dictionary function yet, but we definitely need the mentioned feature.

Some struggles of mine:

https://github.com/kamui-fin/gazou/assets/34913890/5a2b20d8-2a0a-4a83-a1b7-e30b7358e9d7

Currently I'm learning C with a slow pace. Hopefully gonna contribute in near future :D