feat: merge adjacent events as single collapsed event

[lcottercertinia]

Is your feature request related to a problem?

It would be great if by default the call tree merged like events to make navigation easier.

Describe the solution you'd like

Events next to each other that match would be merged into a parent on the call tree. This make the Call Tree smaller and easier to view, we would need a count number in that case. This would do things like merge method calls that are happening in a loop. Expand the parent node would show the thousand of calls underneath.

Method calls in Loops can take up a lot of space in the call tree. I would like a way to see them more easily

Describe the solution you'd like

Add a call tree toggle to Show adjacent repeat nodes as a single row with a Call count.

Do the same on the timeline.