Fold long posts

Is your feature request related to a problem? Please describe. I'm always frustrated when a very long post takes up multiple vertical screens.

Describe the solution you'd like Long posts should be folded with a Show More button like CWed posts in timeline views.

In notifications views, it's okay for long posts to be visually truncated with no unfolding control, because notifications views are just signposts to the actual posts, in their timeline or thread contexts.

Describe alternatives you've considered Long posts in timelines could be left folded until they are "focused" in a single-post or thread view.

Additional context Example of current behavior on the notifications screen: