* FEATURE: shift+j and shift+k will scroll entire posts
When scrolling through topics with very long posts we would like to use
`shift+j` and `shift+k` to quickly move between posts.
This allows users to bypass the scroll within post behavior when zooming
through topics with keyboard shortcuts
This overloads the behavior of shift+k and j which can be used to scroll
through sections (new/latest/etc...)
* remove useless tests
These tests are testing nothing, no point carrying them around
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