How to reproduce:
1. Create and open a new Unity project
2. Install the Profile Analyzer package
3. Open the Profile Analyzer window (Window->Analysis->Profile Analyze)
4. Click on the title of the group "Frame Summary" to expand/contract it

Expected results: the title of the "Frame Summary" is clickable and clicking it expands/contracts the group
Actual results: the title of the "Frame Summary" is unclickable and clicking it does not expand/contract the group

Reproducible with: preview.3-0.4.0, 1.0.0 (2018.4.23f1, 2019.3.16f1. 2019.4.2f1, 2020.1.0b14, 2020.2.0a15)

Notes:
1. Only the arrow next to the title is clickable and clicking it expands/contracts a group
2. Clicking on the title of a group expands/contracts it anywhere else in the Unity Editor