message: fix test and model of grid and list pages
diff: export interface IGridTextItem {
  - description: string;
  - header: string;
  id: number;
  + longDescription: string;
  + orderDate: Date;
  + orderTotal: number;
  + shipTo: string;
  + shortDescription: string;
  + status: boolean;
  + title: string;
  }
  