message: Fix RecentFilesCtrl display on macOS 11
  Disable automaticallyAdjustsContentInsets, otherwise there would be extra space
  above it in WelcomeWindow where the (hidden) toolbar would be.
diff: @@ -543,7 +543,10 @@ RecentFilesCtrl::RecentFilesCtrl(wxWindow *parent)
  #endif
  #ifdef __WXOSX__
  - NSTableView *tableView = (NSTableView*)[((NSScrollView*)GetHandle()) documentView];
  + NSScrollView *scrollView = (NSScrollView*)GetHandle();
  + scrollView.automaticallyAdjustsContentInsets = NO;
  +
  + NSTableView *tableView = (NSTableView*)[scrollView documentView];
  [tableView setIntercellSpacing:NSMakeSize(0.0, 0.0)];
  const int icon_column_width = PX(32 + 12);
  #else
  