Hierarchy V2 search bar gets deformed when resized horizontally

Steps to reproduce:

1. Create a new Unity project using the Universal 3D template
2. Enable Hierarchy V2 (Unity > Settings > General > Use new Hierarchy window)
3. Resize the Hierarchy V2 window to be smaller horizontally
4. Observe the Hierarchy V2 window

Actual results: The search bar is deformed, the search lens icon is moved to the top of the search bar and gets cut off, the "Open Query in Search window" button has graphical artifacts

Expected results: The search bar is not deformed

Reproducible with versions: 6000.3.0b2

Not reproducible with versions: 6000.3.0b1

Tested on (OS): Ubuntu 24.04, macOS Silicon Sequoia 15.6.1