"Inspector" section line goes separately from the section in "Select Preset" window

Steps to reproduce:

1. Create a project
2. Add 3D game object
3. Go to "Inspector" tab
4. Click on any preset icon
5. In "Select Preset" window click "Open Inspector" button
6. Verify, that "Inspector" section opens 
7. Try to minimise/maximize "Inspector" section

 
Expected result: Window should move with its separation line.

Actual result:  Line goes separately from the window. Video added in the attachments section.

Reproducible with: 2023.1.0.a17, 2023.1.0b2
Not reproducible with:

• 2022.2.3f1 (this stream has old UI)
• 2021.3.17f1 (this one has more older UI)