Updating training notebooks - 02_interactive_analysis.ipynb

[GenevieveBuckley]

I was updating the lesson notebook 02_interactive_analysis.ipynbfor an upcoming conference (It's such a great example and learning tool). I found a few parts that needed changing so it still runs in 2023. Here's a gist with the updates: https://gist.github.com/GenevieveBuckley/b9558356554bf8a1382fa76d5917bf87

(I'd like to make a PR for these issues, but don't know if I'll get time, so I'm making a note for later)