Right padding missing in ItemList

[timothyqiu]

Tested versions

• Reproducible: master[db66bd3]
• Not reproducible: 4.4.dev3

System information

Arch Linux

Issue description

The right padding of ItemList is missing in recent builds of master.

Bad (current)	Good

Bisected to 6a9e50b (#97439)
CC @Gamemap

Steps to reproduce

Open any EditorFileDialog (e.g., the "Save Scene" dialog) and select an item in the Recent or Favourite list.

Minimal reproduction project (MRP)

N/A

[brb-fr]

Hmm, is that in the new godot 4.4.dev3?

[havi05]

@timothyqiu Thank you for informing me about the problem. Could you try my pr to see if it fixes the problem correctly?