Sidebar: List of articles published on this day (any year)

[novoid]

In order to support serendipity, there could be a sidebar section where all temporal+persistent only articles are listed, that were initially published on the same day, in any year. For example, an article from 2020-08-26 would list all articles from 2020-08-26, 2019-08-26, 2018-08-26, 2017-08-26, and so on.

• [ ] how o handle end-to-end tests with randomized articles?
  • current simple comparison method would be impossible
  • maybe: purge those sections from all result files prior to comparison?