message: Default column sort order to size (DESC)
diff: @@ -160,8 +160,8 @@ namespace Sqlbi.Bravo.UI.ViewModels
  VpaTableColumnViewModel currentTable = null;
  var cols = _modelService.GetAllColumns()?
  - .OrderBy(c => c.Table.ColumnsTotalSize)
  - .ThenBy(c => c.TotalSize);
  + .OrderByDescending(c => c.Table.ColumnsTotalSize)
  + .ThenByDescending(c => c.TotalSize);
  if (cols != null)
  {
  @@ -200,7 +200,8 @@ namespace Sqlbi.Bravo.UI.ViewModels
  }
  }
  - public IEnumerable<VpaColumnViewModel> AllColumns => AllTableColumns?.SelectMany(t => t.Columns).OrderBy(c => c.ColumnName);
  + public IEnumerable<VpaColumnViewModel> AllColumns
  + => AllTableColumns?.SelectMany(t => t.Columns).OrderByDescending(c => c.TotalSize);
  public IEnumerable<VpaTable> AllTables => _modelService.GetAllTables();
  