Accounts list in the Play Mode Controls windows contains a redundant empty thin section when the list is populated

Steps to reproduce:

1. Open the attached project
2. Open the Platform Toolkit's Play Mode Control window
3. Switch to the Test Account Data section
4. Observe the empty Accounts list, notice that the bottom of the visual element has one border line
5. Press the + button to add a list item
6. Observe the bottom of the Accounts list again

Actual results: The bottom of the Accounts list has an empty thin section, making it appear like the Visual Elements are overlapping or the bottom of the list has a double border 

Expected results: The accounts list element does not contain redundant or overlapping Visual Elements

 

Reproducible with versions: 1.0.0, 1.0.1 (6000.3.11f1, 6000.4.0b12, 6000.5.0a9, 6000.6.0a1)

Can’t test with versions: 6000.0.70f1 (Package is not supported)

Tested on (OS): Ubuntu 22, macOS 26.3.1