Tutorials Update for exercise 1

### Is there an existing proposal for this?

- [x] I have searched the existing proposals

### Is your feature request related to a problem?

When running tutorial exercise 1, the flamegraph that is currently generated is not a great visual way to explore the flamegraph. Specifically the tree has only 1 path, and its hard to show case that the x-axis of the flamegraphe represents size of memory allocated.

### Describe the solution you'd like

An updated tutorial example where we can see distinctly differently sized branches in the tree of the flamegraph.

### Alternatives you considered

_No response_

Locate the tutorial material for exercise 1 and run the current example to inspect its flamegraph. Update the example so the tree has branches with distinctly different sizes, then rerun the exercise and confirm the flamegraph makes the memory-allocation x-axis easier to understand.

Written by the indexing model from the issue text.