Layout fails to finish (never reaches final position) before animation duration ends

This second call to forceLayout was introduced (and later removed because it made for a very jumpy experience) to deal with an issue where the nodes would not reach their final positions before the animation duration ended.

A video of the bug: https://www.loom.com/share/08d7c20a76ec4d36b932f8b57bc0cf9f?sid=c6d28c14-03a3-4894-ae06-d97a022b3539

See @doc-han 's notes here:

"""
The issue is due to a timing problem during animation.
The last animation frame is sometimes computed out of the total animation time.
Hence if total animation duration is 300ms.
So animation ends at now + 300ms but then our last frames call back gets called at now + (X > 300)ms.
We then do not render this last animation frame.
Due to this the nodes don't end up at their final desired positions.
They get stuck at a position in-between their initial and final(desired) position.
Hence removing the forceLayout animation would solve this but then there's a possibility that on a stressed machine nodes don't end up at their final destinations after animation
"""

Farhan has confirmed that the gap between desired position and actual position will never be more than 1-2px, so we'd decided to remove this second call. (In other words, the gap—not the big bounce that occurs when calling forceLayout again—is the lesser of two evils.)

This issue is to fix the gap.