Offline chapter list keeping

[VektorOO7]

Describe your suggested feature

Sometimes when a link is broken, or a capcha gets stuck I want to just migrate to another source, but I have no idea which is the last chapter I have read. It would be nice if the app showed all the chapters even if they aren't updated (you can just add a warning on the page that the chapters aren't synced with the source).

Acknowledgements

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

[lin-ycv]

Like what #660 is requesting, but simpler to implement? Don't even have to keep track of the whole list, just the chapter number for the last read chapter would be enough.