message: Fix plural forms UI sizing with custom font
  If custom text fields font is set, editing area can sometimes get
  disproportionally larger in the upper part, sometimes not leaving
  enough place for actual edit controls.
  Fix by explicitly resetting minimal height.
  Fixes
diff: @@ -526,6 +526,14 @@ void EditingArea::SetCustomFont(const wxFont& font)
  SetCtrlFont(m_textTrans, font);
  for (auto tp : m_textTransPlural)
  SetCtrlFont(tp, font);
  +
  + int minh = m_textOrig->GetCharHeight();
  +#ifdef __WXOSX__
  + minh += 2*3; // inset
  +#endif
  +
  + m_textOrig->SetMinSize(wxSize(-1, minh));
  + m_textOrigPlural->SetMinSize(wxSize(-1, minh));
  }
  