Add indication for failed updates on library page

[destroyedData]

Describe your suggested feature

Issue: When a manga fails to update for some reason (missing/broken source, missing chapters etc) it is difficult to see which entries in the library failed.

Current situation: At this time, the problematic entries are just listed in a txt file which makes it a pain, making users swap between the txt and mihon to find the right library entry, then migrating that.

My suggested solution: It would be nice to have some indication on the library page so users can easily see what to migrate. I suggest to add something like a warning sign in the corner similar to the unread chapter count so users can tell at a glance if their favorite manga failed to update. Even better if filtering by these failed entries is possible.

Other details

No response

Acknowledgements

• [X] I have searched the existing issues and this is a new ticket, NOT a duplicate or related to another open or closed issue.
• [X] I have written a short but informative title.
• [X] I have updated the app to version 0.16.5.
• [X] I will fill out all of the requested information in this form.

[yatounoneko]

After a recent update, I found that version 0.16.5 could not u

pdate the missing komga. Even if the smart update is turned off, the status bar to be stuck in some percentage and disappears.

So far, because of this issue, I can't know which book has been lost or can't be updated (404, 503 errors and so on)

If this feature can be add, I think it is very useful. 👍

[AntsyLich]

I would rather have #132