Weight text is clipped in CineMachineTargetGroup preset asset.

Steps to repro:
1. Create a new Project.
2. Windows > Package Manager > Install Cinemachine package 2.3.4.
3. Create Target Group Camera > Create TargetGroup1 preset asset.
4. Select CineMachineTargetGroup preset asset in the project view.

Actual Result:
Weight text is clipped in CineMachineTargetGroup preset asset.

Expected Result:
Weight text should not be clipped in CineMachineTargetGroup preset asset.

Reproducible in Package Version: 2.3.4, 2.3.3.

Tested in Unity Version:
2020.1.0a9, 2019.3.0b7, 2019.2.0f1.

Environment:
Windows 10 & Mac 10.14.