v1.4.3

Fixed

• Linux bundle — font selection: _load_bundled_fonts() now explicitly sets
  Ubuntu as the application font after registering the bundled .ttf files.
  The libfontconfig.so bundled by PyInstaller has its default config path
  hardcoded to the build machine's conda prefix; on any other machine that path
  is absent and fontconfig fails silently, leaving Qt with no valid system font
  and an unpredictable default. Forcing Ubuntu bypasses fontconfig for font
  selection while the runtime hook (pyi_rth_fonts.py) still provides a
  portable fonts.conf so rendering settings (anti-aliasing, hinting…) are
  inherited from the system /etc/fonts/fonts.conf.