message: macOS: fix padding around msgctxt with custom font
diff: @@ -519,7 +519,13 @@ void PoeditListCtrl::SetCustomFont(wxFont font_)
  SetFont(font);
  #if defined(__WXOSX__)
  - SetRowHeight(20);
  + // Custom setup of NSLayoutManager is necessary to match NSTableView sizing.
  + // See http://stackoverflow.com/questions/17095927/dynamically-changing-row-height-after-font-size-of-entire-nstableview-nsoutlin
  + NSLayoutManager *lm = [[NSLayoutManager alloc] init];
  + [lm setTypesetterBehavior:NSTypesetterBehavior_10_2_WithCompatibility];
  + [lm setUsesScreenFonts:NO];
  + CGFloat height = [lm defaultLineHeightForFont:font.OSXGetNSFont()];
  + SetRowHeight(int(height) + PX(4));
  #elif defined(__WXMSW__)
  SetRowHeight(GetCharHeight() + PX(4));
  #endif
  