EDITED:
Does it exist a FxLayout directive to move the close button on the left and to leave others buttons on the right? alternately how can i achieve the same result via css?
<div class="actions" fxLayout="row" fxLayoutAlign="end center" fxLayoutGap="8px">
<button mat-raised-button color="secondary" [mat-dialog-close]="true" >Close</button>
<button mat-raised-button color="primary" (click)="previous()" >Previous</button>
<button mat-raised-button color="primary" (click)="next()" >Next</button>
</div>