On clicking 'Scripting Thread' drop-down in Timeline-Module details panel
'Thread Pool I/O Selector' text is clipped. refer the attached screenshot.

Steps to Reproduce:
1. Create a new project
2. Open Window > Analysis > Profiler
3. Target Selection > Editor > record Profiler data
4. Profiler > CPU Usage
5. Module details panel > Timeline > 'Scripting Thread' drop-down.
6. Observe 'Thread Pool I/O Selector' text

Expected Result: 'Thread Pool I/O Selector' text should be clearly visible in 'Scripting Thread' drop-down.

Actual Result: 'Thread Pool I/O Selector' text is clipped in 'Scripting Thread' drop-down.

Occurring in:
2020.2.0b6, 2020.1.8f1, 2019.4.12f1, 2019.3.0b2

Working fine in:
2019.3.0b1, 2019.2.21f1.

Environment: Mac 10.15 and Windows 10