Modal "Add Settings" is displayed in double borders

Unity: Build Settings Window

6.3.X

Added a consistent size to the Build Profile Add Settings dropdown window to keep it consistent with the other editor dropdowns.

Steps to reproduce:

Create a project
File -> Build profiles
Select the platform and click "Add Build Profile"
Leave the default proposed build title and click "Add Build Profile"
Verify that the new build is created and you get its data in the build details window
Click "Add Settings"
Observe the modal

Actual results: The modal "Add Settings" is displayed in double borders

Expected results: Double borders are not needed. One border for the modal is enough.

Reproducible with versions: 6000.3.0a2, 6000.3.0a3

Not reproducible with versions: -

Can’t test with versions: 6000.3.0a1: "Add Settings" functionality is added only from the 6000.3.0a2 build.

Tested on (OS): M1 Max - Sequoia 15.5