[feat] plugins/Wallabag: archiving instead of deleting articles (#5148)
[feat] plugins/Wallabag: archiving instead of deleting articles (#5148)

Marks finished articles as read (archived) instead of permanently deleting them.
Hzj-jie/koreader,pazos/koreader,poire-z/koreader,Frenzie/koreader,koreader/koreader,Markismus/koreader,NiLuJe/koreader,Frenzie/koreader,mwoz123/koreader,NiLuJe/koreader,poire-z/koreader,koreader/koreader,mihailim/koreader