Basic constructor
      const
      Basic({ 
    
    
- Key? key,
- Widget? leading,
- Widget? title,
- Widget? subtitle,
- Widget? content,
- Widget? trailing,
- AlignmentGeometry? leadingAlignment,
- AlignmentGeometry? trailingAlignment,
- AlignmentGeometry? titleAlignment,
- AlignmentGeometry? subtitleAlignment,
- AlignmentGeometry? contentAlignment,
- double? contentSpacing,
- double? titleSpacing,
- MainAxisAlignment? mainAxisAlignment,
- EdgeInsetsGeometry? padding,
Implementation
const Basic({
  super.key,
  this.leading,
  this.title,
  this.subtitle,
  this.content,
  this.trailing,
  this.leadingAlignment,
  this.trailingAlignment,
  this.titleAlignment,
  this.subtitleAlignment,
  this.contentAlignment,
  this.contentSpacing, // 16
  this.titleSpacing, //4
  this.mainAxisAlignment,
  this.padding,
});