Grid continues scrolling after user finishes dragging

[tyler-dane]

Where did this happen?

Local code with an up-to-date main branch, Production app

Expected Behavior

Given that a user has finished dragging an event by mousing up
And the grid needed to scroll during the process of the drag (in order to keep showing the event rectangle)
Then the scrolling should stop
And the user should be able to see their updated event
And the event should be in the correct location (based on where they moused up)

Current Behavior

The scrolling continues until reaching the top/bottom

If the user stopped dragging during a scroll, the event is placed at the very top / bottom of the grid

drag.bugs.mov

Steps to Reproduce

1. Drag event up/down until the grid starts scrolling
2. Release the mouse during the scroll
3. Notice the event is not in the correct location
4. Notice that the scroll does not stop

Possible Solution

No response

Context

This was introduced in #262