Steps to reproduce:

1. Create a new Unity project
2. Go to menu "Unity" -> "Shortcuts"
3. Verify, that the "Shortcuts" window opens
4. In the profile drop-down menu select "Create new profile"
5. Observe the "Create profile" window
6. Try to resize it. Verify, that it doesn't work.
7. In the profile drop-down menu select "Rename profile"
8. Observe the "Rename profile" window
9. Try to resize it. Verify, that it doesn't work.
10. In the profile drop-down menu select "Delete profile"
11. Observe the "Delete profile" window
12. Try to resize it. Verify, that it works.

Expected result: All three modals should have consistent UI and behavior. The user should not be able to resize the "Delete profile" window.

Actual result: The "Delete profile" window has a different behavior compared with the "Create new profile" or "Rename profile". It can be resized. And during it modal has empty spaces. Added screenshot in the "Attachments" section.

Reproducible with: 2021.3.30f1, 2022.3.6f1, 2023.1.11f1, 2023.2.0b8, 2023.3.0a4.