kfmc_website/src/app/higri-date/higri-date.component.html

<input class="form-control" 
    (ngModelChange)="onSearchChange($event)" 
    placeholder="yyyy-mm-dd"
    name="dp" 
    [(ngModel)]="model" 
    ngbDatepicker #d="ngbDatepicker" />
            
<div class="input-group-append">
    <button class="btn btn-outline-secondary calendar" (click)="d.toggle()" type="button"><i class="fas fa-calendar-minus"></i></button>
</div>