Comics/Mangas synced via kobo sync have a margin on the kobo reader.

[PixyTM]

Steps to reproduce

1. Setup kobo sync with a komga server
2. Sync an epub file that was converted from a cbz with Kindle Comic Converter
3. Observe the margins on the file that was synced to the kobo.

Expected behavior

There is no margin and the images are in full-screen on the e-reader.

(Example of a file synced via calibre-web)

Actual behavior

There is a margin and the images are not in full-screen on the e-reader.

(Example of a file synced via komga)

Logs

No response

Komga version

v1.14.0-master

Operating system

Windows 10

Installation method

Docker

Other details

This is an issue that was happening with calibre-web before, but it has since been fixed.
Here are the various links that were related to the issue:
janeczku/calibre-web#1514
janeczku/calibre-web#1219
janeczku/calibre-web#2262
It had something to do with fixed layout epubs, if I make no mistakes.

Acknowledgements

• I have searched the existing issues (open AND closed) and this is a new ticket, NOT a duplicate or related to another open issue.
• I have written a short but informative title.
• I have checked the FAQ.
• I have updated the app to the latest version.
• I will fill out all of the requested information in this form.

[gotson]

Komga already knows if an EPUB is fixed-layout or not. It seems that what is needed is to return EPUB3FL as the format for Kobo Sync instead of KEPUB.

I will need to give it a try and see how it works.