Port cross device sync

[null2264]

Gonna require quite a lot of effort, might never be merged, who knows.

REF:

• https://github.com/jobobby04/TachiyomiSY/commit/334e9fb680aa51094842d9a2af4db04e82d70ef1
• https://github.com/jobobby04/TachiyomiSY/commit/cdb07c893b394737afac088e006174b45252749a
• https://github.com/quickdesh/Animiru/commit/d2f1d920266a3da1a7eea6b6724e9f561244868d
• https://github.com/jobobby04/TachiyomiSY/commit/c2eece0fff7c8b4395bf0aa02c7ef6012f9bbf8d

[Caio99BR]

Hello, if you want to look for reference, this (https://github.com/mihonapp/mihon/pull/953) is the latest changes from cross device sync, ported from TachiSY to Mihon Of course it's just a draft that put all the changes made by KaiserBh, Cologler and jobobby04