Scroll all the way horizontally left when vertically scroll output view

[bpringe]

Currently it seems if you're scrolled to the right, then new content is appended, the view is scrolled vertically, but is only scrolled horizontally the the left of the content added, not to the left of the entire view.

[bpringe]

This will be fixed by https://github.com/BetterThanTomorrow/calva/pull/2868/files#diff-7d7e61ff6f5126b9d015f9e08f4326bc12d4d4ba6190ee88950df0507d248eaeR33-R36