UI: Indicate or show "errored" entries in a different colour

[voltagex]

Is your feature request related to a problem? Please describe.
/archive/list shows me a list of entries, but it's not clear on this page which entries have errored (or in one case, were redirected to a malicious site!)

While this example is pretty obvious because of the changed title, some others in my imported bookmarks are not.

Describe the solution you'd like

Some ideas:

• Allow setting status codes to different colours (e.g. one colour each for 301, 302, 404)
• Show the status code in a small font on the right of the list entry

Describe alternatives you've considered
I'm writing code against the API at the moment.

Additional context
Note I use wallabag.it and I'm not sure what version they run