Tile Palette dropdown menu doesn’t truncate longer Tilemap names in Tile Palette window

Steps to reproduce:
1. Create new Unity project using Universal 2D Template
2. In Hierarchy window create a Tilemap and name it “TestingTilemapLongerNaming123”
3. Open Tile Palette window (Window > 2D > Tile Palette)
4. Observe the Tile naming in the drop-down button and menu 

Actual results: Longer Tilemap names are not truncated in Tile Palette window dropdown

Expected results: Longer Tilemap names are truncated in Tile Palette window dropdown

Reproducible with versions: 6000.0.66f1, 6000.3.5f1, 6000.4.0b5, 6000.5.0a5

Tested on (OS): Windows 11, macOS Silicon Tahoe 26.2 (M1)