Defeaturing Tools UI does not pack properly

[sjgallagher2]

Using the FreeCAD Dark theme (haven't tried others) with Medium toolbar icons (24px, if relevant) the buttons are not properly arranged and they don't resize/rearrange when the window size changes.

OS: Windows 10 build 19045
Architecture: x86_64
Version: 1.0.0.39109 (Git) Conda
Build type: Release
Branch: (HEAD detached at 1.0.0)
Hash: 2fcc5317fe3aee96ca73475986a577719fc78e20
Python 3.11.10, Qt 5.15.15, Coin 4.0.3, Vtk 9.3.0, OCC 7.8.1
Locale: English/United States (en_US)
Stylesheet/Theme/QtStyle: FreeCAD Dark.qss/FreeCAD Dark/Fusion
Installed mods: 
  * Curves 0.6.51
  * Defeaturing 1.2.2
  * fasteners 0.5.32
  * FreeCAD-themes 2024.7.24
  * sheetmetal 0.5.10
  * woodworking 0.21.2.33771