Sorting modes of article list

[aisbergde]

• by creation date.
• by update date.
• by estimated reading time.
• by name (alphabetical).

I also would like to add the ability to sort the archiv by marked as read time

[Strubbl]

Currently this is not possible, because marked as read time is only provided starting with wallabag v2.4.0 (see wallabag/wallabag#3630 )

So having wallabag server 2.4 release is a dependency to this issue - besides that the API-wrapper-lib needs to be adjusted for that purpose, too.

[techexo]

Estimated reading time would be great, I think this option is long overdue (milestone 1.x! 😀).

[Strubbl]

Milestone updated. 😄
Maybe it's easier to implement this after @di72nn has been using android paging lib mentioned in #1014 (comment)