Resizing the CPU flame chart changes the timing values across the top of the chart

[DanTup]

I noticed when I change the size of my browser window, the CPU flame chart timings seem to scale differently to the data. I originally had the window taking up half of my monitor and it looked like the total was around 8 seconds, but maximising the window changed the scale to show that the total was only 4 seconds.

https://github.com/flutter/devtools/assets/1078012/97ba1386-9997-4e26-9fc0-9108810801fe