`TableView`: animate row hide/reveal

[rolyp]

Now that we refresh the UI’s selection state (rather than rebuilding the UI from scratch each time) it should be relatively easy to add animation. In particular TableView would benefit from animation to provide a visual cue that rows are being hidden/revealed as the output selection changes.

Related issues:

• 989

• 952

See:

• https://stackoverflow.com/questions/13037637/css-animation-and-display-none