Exclude subtitles and poster size from (Vietnamese) cross-device settings sync

Describe your suggested feature

Hi,
First of all, great job on the (Vietnamese) cross-device sync feature! It works really well, but I have a small suggestion regarding how settings are synchronized across devices with different screen sizes (like a mobile phone and a tablet).
Currently, the extension syncs all settings globally. However, this creates a usability issue for Subtitle Size and Poster Size:
Tablets (Large Screens): Need larger subtitle text and larger poster sizes to utilize the screen properly.
Mobiles (Small Screens): Need smaller subtitles and smaller poster sizes. If the tablet's large settings sync to the mobile, the subtitles cover the entire screen and the posters look distorted.
Request:
Could you please update the sync logic to exclude subtitle size and poster size from the cross-device synchronization? Allowing these two specific UI settings to be configured independently on each device would make the extension perfect for multi-device users.
Thank you for your hard work and for considering this improvement!

Other details

No response

Acknowledgements

• My suggestion is NOT about adding a new provider
• I have searched the existing issues and this is a new ticket, NOT a duplicate or related to another open issue.

Start by locating the cross-device settings sync logic and the definitions for Subtitle Size and Poster Size. The change is complete when those two settings remain independent on each device while the other settings continue to synchronize across devices.