Add 4 koma reading mode

[Perry-God]

Describe your suggested feature

Like cut the pages in half to make it readable without having to zoom in

Other details

No response

Acknowledgements

• [X] I have searched the existing issues and this is a new ticket, NOT a duplicate or related to another open or closed issue.
• [X] I have written a short but informative title.
• [X] If this is a request regarding an extension, I should be opening an issue in the extension's repository.
• [X] I have updated the app to version 0.3.2.
• [X] I will fill out all of the requested information in this form.