Fix gaps in timeline when loading older after pressing show new
- Scroll any timeline until new posts are fetched a few times (try 10+)
- Scroll back to the top and load new posts
- The timeline will lose the older posts that were loaded
- Next time you scroll down it'll start loading older posts pasts the time of point 1.
Most of the changes are from indents changing in the test, I only added 1 test without modifying others, and renamed/moved some describe/its