Custom button attributes

[gitkwarteng]

jquery-confirm version:
v3.x.x

I'm submitting a ...
[x ] feature request

Current behavior:
you can't set custom attributes on buttons.

Expected behavior:
set custom attributes on buttons

Related code:

                    save: {
                        text: 'Save',
                        btnClass: 'btn-secondary btn-lg mx-3',
                        attrs: {
                            'x-data': '{}',
                            'x-show': '$store.basket.isSettled'
                        },
                        action: function () {
                           
                        }
                    },
   } 

insert any relevant code here

// get custom attributes
 let attrs = that.buttons[key].attrs
 if (attrs) {
      $.each(attrs, function(key, value) {
            button_element.attr(key, value);
       });
 }