primaryOutline method
Implementation
AzButton primaryOutline(){
Color color = AzUtlis().colorPrimary;
Color colorOverlay = AzUtlis().colorPrimaryOverlay;
_overlayColor ??= MaterialStateProperty.all(colorOverlay);
_foregroundColor ??= MaterialStateProperty.all(color);
_side = MaterialStateProperty.all(BorderSide(
width: _borderWidth,
color: color
));
return this;
}