disable past dates on agenda

src/app/shared/agenda/new-event/new-event.page.html

@@ -128,6 +128,7 @@
               placeholder="Choose a date"
               [(ngModel)]="postEvent.StartDate"
               [disabled]="disabled"
+              [min]="currentDate"
             >
             <mat-datepicker-toggle id="new-inicio" matSuffix [for]="picker1"></mat-datepicker-toggle>
             <ngx-mat-datetime-picker #picker1
@@ -159,6 +160,7 @@
               placeholder="Choose a date"
               [(ngModel)]="postEvent.EndDate"
               [disabled]="disabled"
+              [min]="currentDate"
             >
             <mat-datepicker-toggle id="new-fim" matSuffix [for]="fim"></mat-datepicker-toggle>
             <ngx-mat-datetime-picker #fim

src/app/shared/agenda/new-event/new-event.page.ts

@@ -63,6 +63,7 @@ export class NewEventPage implements OnInit {
   public stepHour = 1;
   public stepMinute = 5;
   public stepSecond = 5;
+  currentDate = new Date();
   public color: ThemePalette = 'primary';
   recurringTypes = []
   selectedRecurringType: any;