[TerrainTools] Tooltip of "Scale", "Rotation" and "Noise Field Preview " appear in the center.

In the Noise Editor Window tooltip for "Scale", "Rotation" and "Noise Field Preview " appear in the center.

Steps to Repro:
1. Create a new Project
2. Add package Terrain Tool 4.0.0
3. Windows > Terrain > Edit Noise
4. Observe the tooltip that appears in the center and not near the name of the field.

Expected Result: Tooltip of "Scale", "Rotation" and "Noise Field Preview " should appear near the hovered property name.

Actual Result: Tooltip of "Scale", "Rotation" and "Noise Field Preview " appear in the center.

Reproducible in: 2021.2.0a19, 2020.3.11f1, 2019.4.28f1 with the package version 4.0.0 Pre 2 RC, 3.0.2 pre.3, 3.0.1 pre, 3.0.0 pre 2.0.0.pre

Environment: Windows 10 and macOS 11.3

Note: Noise Editor window is introduced in package version 2.0.0 pre