validateImageWidth = imageFile => {
    if (imageFile) {
      const { maxWidth } = this.props;
      if (imageFile.width > maxWidth) {
        return `Image width must be less or equal to ${maxWidth}px`;
      }
    }
  };
  validateImageHeight = imageFile => {
    if (imageFile) {
      const { maxHeight } = this.props;
      if (imageFile.height > maxHeight) {
        return `Image height must be less or equal to ${maxHeight}px`;
      }
    }
  };