type TPage = {
    scale: number;
    number: number;
    canvas: HTMLCanvasElement;
    container: HTMLDivElement;
    isRendered: boolean;
    isRendering: boolean;
    textLayout?: HTMLDivElement;
};
type TMiniPage = {
    width: number;
    number: number;
    isRendered: boolean;
    canvas: HTMLCanvasElement;
};
type TPageOrNot = TPage | undefined;