Collapse context menu option does not group events

[BeksOmega]

Describe the bug

When you select the "Collapse Blocks" context menu option, all of the blocks are properly collapsed. However, if you try to undo this, you have to undo collapsing each block individually, because the events are not grouped.

To Reproduce

Steps to reproduce the behavior:

1. Go to the playground.
2. Select the spawn random blocks action, or drag some blocks into the workspace.
3. Right click the workspace and select the "Collapse Blocks" option.
4. Attempt to undo the action using ctrl + z
5. Observe how you have to undo the actions individually.

Additional context

The relevant code of this context menu item lives here.

I think the easiest way to solve this is to remove the timeout, and add setGroup calls surrounding the for-loop.