- Add button to select top-10 instance types per category
- Right align category selection buttons
- Lazily draw the graph for snappier UI
- Pre-init instance variables in details-selection

Change-Id: I61ea80d523c49215b9d418e66698a12cbc050316
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2210681
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67950}