Bone name misaligned under "Weight Slider" panel from "Skinning Editor" when a name has more than 26 letters, also button offset goes out of the panel on increasing letters in the bone name, refer the attached screenshot

Steps to repro:
1. Create a new project
2. Window > Package Manager > 2D Animation(4.0.0) > Install
3. Import Sample Project Under 2D Animation Package
4. Asset > Unity Technology > 2D Animation > Sample > Sprite > Boris
5. Open Sprite Editor > Skinning Editor
6. Enable Visibility of Panel
7. Select "Weight Slider" and select a Bone name which has more than 26 letters

Actual Result:
Bone name is misaligned when it has more than 26 letters

Expected Result:
Bone name should not be misaligned and have validation for the name field

Reproducible on:
2020.1.0a14, 2019.3.0f1

Note: 2D animation package 3.0.2 is introduced in unity 2019.3.0a10

Package Found version: 4.0.0, 3.0.8, 3.0.5

Package working fine version: 3.0.3, 3.0.2

Environment:
Windows 10 & macOS 10.14