Mip Icon is cut off when Reflection Probe preview is converted to a floating window

Steps to reproduce:

1. Create a new Unity project using the Universal 3D template
2. Create a Reflection Probe (GameObject > Lighting > Reflection Probe)
3. Bake the Reflection Probe by pressing the "Bake" button in the Inspector window
4. Press the burger icon button in the Preview section in the Inspector window
5. Select "Convert to Floating window" option
6. Resize the floating window to the minimum available width
7. Observe the floating window

Actual results: Mip icon is cut off

Expected results: No icons are cut off

Reproducible with versions: 6000.0.56f1, 6000.1.16f1, 6000.2.1f1, 6000.3.0a5

Tested on (OS): macOS Silicon Sequoia 15.5