Postprocessing Volume properties are misaligned in its preset asset.

Steps to repro:
1. Create a new project.
2. Windows > Package Manager > Post Processing > Install.
3. Create a cube > Add Component > Post-process Volume.
4. Create a new Volume Profile > Add effects > Unity > Bloom.
5. Create and select a preset for Post-process Volume.

Actual Result:
Postprocessing Volume properties are misaligned.

Expected Result:
Postprocessing Volume properties should be aligned.

Tested in Package Version: 2.1.7, 2.1.6, 2.1.5, 2.1.4, 2.1.3, 2.1.2, 2.1.1, 2.1.0.

Reproducible on:
2020.1.0a12, 2019.3.0b10, 2018.2.0f2, 2018.1.0b5.

Environment:
Windows 10 & Mac 10.14.